@phdthesis{Muth2023, author = {Muth, Felicitas Vanessa}, title = {Step by step: Sense of agency for complex action-event sequences}, doi = {10.25972/OPUS-30756}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-307569}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2023}, abstract = {From simply ringing a bell to preparing a five-course menu, human behavior commonly causes changes in the environment. Such episodes where an agent acts, thereby causing changes in their environment constitute the sense of agency. In this thesis four series of experi-ments elucidate how the sense of agency is represented in complex action-event sequences, thereby bridging a gap between basic cognitive research and real-life practice. It builds upon extensive research on the sense of agency in unequivocal sequences consisting of single ac-tions and distinct, predominantly auditory, outcomes. Employing implicit as well as explicit measures, the scope is opened up to multi-step sequences. The experiments show that it is worthwhile devoting more research to complex action-event sequences. With a newly introduced auditory measure (Chapter II), common phenomena such as temporal binding and a decrease in agency ratings following distorted feedback were replicated in multi-step sequences. However, diverging results between traditional implicit and explicit measures call for further inspection. Multisensory integration appears to gain more weight when multiple actions have to be performed to attain a goal leading to more accurate representations of the own actions (Chapter III). Additionally, freedom of choice (Chapter III) as well as early spatial ambiguity altered the perceived timing of outcomes, while late spatial ambi-guity (Chapter IV) and the outcome's self-relevance did not (Chapter V). The data suggests that the cognitive system is capable of representing multi-step action-event sequences implicitly and explicitly. Actions and sensory events show a temporal attraction stemming from a bias in the perception of outcomes. Explicit knowledge about causing an event-sequence facilitates neither feelings of control nor taking authorship. The results corroborate current theorizing on the un-derpinnings of temporal binding and the divergence between traditional implicit and explicit measures of the sense of agency. Promising avenues for further research include structured analyses of how much inferred causality contributes to implicit and explicit measures of agency as well as finding alternative measures to capture conceptual as well as non-conceptual facets of the agency experience with one method.}, subject = {Psychologie}, language = {en} } @incollection{Bergengruen2020, author = {Bergengruen, Maximilian}, title = {"Verborgene Mittel": Verfolgungswahn im Fall Woyzeck (B{\"u}chner/Clarus/Esquirol)}, series = {Die Causes c{\´e}l{\`e}bres des 19. Jahrhunderts in Frankreich und Deutschland. Narrative Formen und anthropologische Funktionen}, booktitle = {Die Causes c{\´e}l{\`e}bres des 19. Jahrhunderts in Frankreich und Deutschland. Narrative Formen und anthropologische Funktionen}, publisher = {Harrassowitz Verlag}, address = {Wiesbaden}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-303307}, publisher = {Universit{\"a}t W{\"u}rzburg}, pages = {165-184}, year = {2020}, abstract = {No abstract available.}, language = {de} } @phdthesis{Schmitt2022, author = {Schmitt, Nadine J. B.}, title = {What is integrity and how do we use it? - Enhancing the validity of integrity by reviewing integrity tests, expanding the nomological network, and reducing faking}, doi = {10.25972/OPUS-26046}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260468}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2022}, abstract = {This dissertation focuses on the construct and criterion validity of integrity tests and aims to enhance both. To accomplish this goal, three approaches were adopted: First, an overview and systematic comparison of integrity tests was conducted with reference to the construction and application of the tests. Second, the nomological network of integrity tests was expanded with reference to honesty-humility and organizational citizenship behavior at their factor and facet level. Third, two promising methods to reduce faking on integrity tests were tested: the double rating method (Hui, 2001) and the indirect questioning technique. In line with previous research, the results of the overview and comparison of integrity measures confirmed that integrity tests are multidimensional and heterogenous. A clear definition of integrity is urgently needed. The personality trait of honesty-humility and its facets of fairness, and modesty revealed the most significant relationships to integrity. Moreover, organizational citizenship behavior and its facets of altruism, conscientiousness, and sportsmanship were found to significantly relate to integrity. Furthermore, integrity tests were able not only to predict organizational citizenship behavior but also to incrementally predict job performance and organizational citizenship behavior beyond the factor and facet level of the personality traits of conscientiousness and honesty-humility. In contrast to the indirect questioning technique, the double rating method, which includes an other rating and a self rating, was shown to be able to significantly reduce faking on integrity tests in an anonymous survey setting. This dissertation makes an important contribution to better explain the construct and nomological network of integrity, provide a more detailed view on integrity tests and their protection against faking, and expand the predictive and incremental validity of these tests. The implications for future research and practice are further discussed.}, subject = {Integrit{\"a}t}, language = {en} } @phdthesis{Ahrens2020, author = {Ahrens, Lea Marlen}, title = {The Role of Attentional Control and Fear Acquisition and Generalization in Social Anxiety Disorder}, doi = {10.25972/OPUS-17162}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-171622}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2020}, abstract = {Although Social Anxiety Disorder (SAD) is one of the most prevalent mental disorders, still little is known about its development and maintenance. Cognitive models assume that deviations in attentional as well as associative learning processes play a role in the etiology of SAD. Amongst others, deficits in inhibitory attentional control as well as aberrations during fear generalization, which have already been observed in other anxiety disorders, are two candidate mechanisms that might contribute to the onset and retention of SAD. However, a review of the literature shows that there is a lack of research relating to these topics. Thus, the aim of the present thesis was to examine in which way individuals with SAD differ from healthy controls regarding attentional control and generalization of acquired fear during the processing of social stimuli. Study 1 tested whether impairment in the inhibitory control of attention is a feature of SAD, and how it might be influenced by emotional expression and gaze direction of an interactional partner. For this purpose, individuals with SAD and healthy controls (HC) participated in an antisaccade task with faces displaying different emotional expressions (angry, neutral and happy) and gaze directions (direct and averted) serving as target stimuli. While the participants performed either pro- or antisaccades in response to the peripherally presented faces, their gaze behavior was recorded via eye-tracking, and ratings of valence and arousal were obtained. Results revealed that both groups showed prolonged latencies and increased error rates in trials with correct anti- compared to prosaccades. However, there were no differences between groups with regard to response latency or error rates, indicating that SAD patients did not exhibit impairment on inhibitory attentional control in comparison to HC during eye-tracking. Possible explanations for this finding could be that reduced inhibitory attentional control in SAD only occurs under certain circumstances, for example, when these individuals currently run the risk of being negatively evaluated by others and not in the mere presence of phobic stimuli, or when the cognitive load of a task is so high that it cannot be unwound by compensatory strategies, such as putting more effort into a task. As not only deviations in attentional, but also associative learning processes might be pathogenic markers of SAD, these mechanisms were further addressed in the following experiments. Study 2 is the first that attempted to investigate the generalization of conditioned fear in patients with SAD. To this end, patients with SAD and HC were conditioned to two neutral female faces serving as conditioned stimuli (CS+: reinforced; CS-: non-reinforced) and a fearful face paired with a loud scream serving as unconditioned stimulus (US). Fear generalization was tested by presenting morphs of the two faces (GS: generalization stimuli), which varied in their similarity to the original faces. During the whole experiment, self-report ratings, heart rate (HR) and skin conductance responses (SCR) were recorded. Results demonstrated that SAD patients rated all stimuli as less pleasant and more arousing, and overestimated the occurrence of the US compared to HC, indicating a general hyperarousal in individuals with SAD. In addition, ratings and SCR indicated that both groups generalized their acquired fear from the CS+ to intermediate GSs as a function of their similarity to the CS+. However, except for the HR data, which indicated that only SAD patients but not HC displayed a generalization response in this measure, most of the results did not support the hypothesis that SAD is characterized by overgeneralization. A plausible reason for this finding could be that overgeneralization is just a key characteristic of some anxiety disorders and SAD is not one of them. Still, other factors, such as comorbidities in the individuals with SAD, could also have had an influence on the results, which is why overgeneralization was further examined in study 3. The aim of study 3 was to investigate fear generalization on a neuronal level. Hence, high (HSA) and low socially anxious participants (LSA) underwent a conditioning paradigm, which was an adaption of the experimental design used study 2 for EEG. During the experiment, steady-state visually evoked potentials (ssVEPs) and ratings of valence and arousal were recorded. Analyses revealed significant generalization gradients in all ratings with highest fear responses to the CS+ and a progressive decline of these reactions with increasing similarity to the CS-. In contrast, the generalization gradient on a neuronal level showed highest amplitudes for the CS+ and a reduction in amplitude to the most proximal, but not distal GSs in the ssVEP signal, which might be interpreted as lateral inhibition in the visual cortex. The observed dissociation among explicit and implicit measures points to different functions of behavioral and sensory cortical processes during fear generalization: While the ratings might reflect an individual's consciously increased readiness to react to threat, the lateral inhibition pattern in the occipital cortex might serve to maximize the contrast among stimuli with and without affective value and thereby improve adaptive behavior. As no group differences could be observed, the finding of study 2 that overgeneralization does not seem to be a marker of SAD is further consolidated. In sum, the conducted experiments suggest that individuals with SAD are characterized by a general hyperarousal during the exposition to disorder-relevant stimuli as indicated by enhanced arousal and reduced valence ratings of the stimuli compared to HC. However, the hypotheses that reduced inhibitory attentional control and overgeneralization of conditioned fear are markers of SAD were mostly not confirmed. Further research is required to elucidate whether they only occur under certain circumstances, such as high cognitive load (e.g. handling two tasks simultaneously) or social stress (e.g. before giving a speech), or whether they are not characteristics of SAD at all. With the help of these findings, new interventions for the treatment of SAD can be developed, such as attentional bias modification or discrimination learning.}, subject = {Sozialangst}, language = {en} } @phdthesis{Marker2020, author = {Marker, Caroline}, title = {On a meta-level: Contributions of meta-analytic summaries in media psychological research}, doi = {10.25972/OPUS-20917}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-209173}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2020}, abstract = {The rising use of new media has given rise to public discussions about their possible negative consequences. The social sciences have answered these concerns, providing many studies investigating different media types (e.g., social media, video games) and different related variables (e.g., psychological well-being, academic achievement). Within this big body of research, some research results have confirmed negative associations with frequent media use; other studies have found no or even positive relationships. With heterogeneous results, it is difficult to obtain a clear picture of the relationships and causalities of new media. The method of meta-analysis allows a synthesis of all existing data, providing an overall effect size as well as moderator and mediator analyses which might explain the heterogeneity. Three manuscripts present meta-analytic evidence related to a) the relationship between social media use and academic achievement, b) the relationship between video gaming and overweight, and c) the relationship between social media and psychological correlates. Manuscript \#1 found small relationships which depend on the usage pattern of social media. The relationship is positive, as long as social media use is related to school. Manuscript \#2 showed that children's and adolescents' video gaming is independent from their body mass, while adults who play more have a higher body mass. Manuscript \#3 summarized existing meta-analytic evidence that links social media with psychological wellbeing, academic achievement, and narcissism with small to moderate effect sizes. All three manuscripts underscore the potential of meta-analyses to synthesize previous research and to identify moderators. Although meta-analyses are not necessarily superior to other approaches because of their limitations (e.g. limited information or quality of primary studies) they are very promising for media psychology. Meta-analyses can reduce complexity and might be helpful for the communication of research results to the general public.}, subject = {Medienkonsum}, language = {en} } @phdthesis{Krause2020, author = {Krause, Stefan}, title = {How stories influence the self: Antecedents, processes and consequences}, doi = {10.25972/OPUS-20761}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-207611}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2020}, abstract = {The impact of stories in their ability to shape our view on the world has long been a central topic in communication science and media psychology. While reading a book or watching a movie, we are transported into story worlds and we identify with depicted protagonists. Several studies showed that high levels of transportation lead to greater story-consistent beliefs. Similar effects were found for identification. However, much less is known how and in which direction stories could affect the self. Five experimental studies were conducted and summarized in three manuscripts. Manuscript \#1 explored the moderating role of transportation that could shift one's self-perception towards traits of a depicted story character (assimilation) or away from him/her (contrast). Manuscript \#2 focused on downward social comparisons with a protagonist and possible contrast effects on participants' self-perception in relation to others, their motives and behavior. Thereby, the mediating role of transportation and identification were investigated. Finally, upward social comparison with a protagonist and related emotions (e.g., envy) that mediate possible effects on one's self perception and behavioral intentions were investigated in manuscript \#3. This dissertation project contributes to the literature on stories and the self. Consistent with previous work, assimilation effects were found for highly transported recipients. However, stories might also elicit contrast effects on recipients' selves and behavioral intentions that are opposite to a depicted character. Extending prior research, there were evidence that transportation and envy are important process variables explaining assimilation vs. contrast effects.}, subject = {Selbst}, language = {en} } @phdthesis{Rubo2019, author = {Rubo, Marius}, title = {Social Attention in the Laboratory, in Real Life and in Virtual Reality}, doi = {10.25972/OPUS-18845}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-188452}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2019}, abstract = {Social attention is a ubiquitous, but also enigmatic and sometimes elusive phenomenon. We direct our gaze at other human beings to see what they are doing and to guess their intentions, but we may also absorb social events en passant as they unfold in the corner of the eye. We use our gaze as a discrete communication channel, sometimes conveying pieces of information which would be difficult to explicate, but we may also find ourselves avoiding eye-contact with others in moments when self-disclosure is fear-laden. We experience our gaze as the most genuine expression of our will, but research also suggests considerable levels of predictability and automaticity in our gaze behavior. The phenomenon's complexity has hindered researchers from developing a unified framework which can conclusively accommodate all of its aspects, or from even agreeing on the most promising research methodologies. The present work follows a multi-methods approach, taking on several aspects of the phenomenon from various directions. Participants in study 1 viewed dynamic social scenes on a computer screen. Here, low-level physical saliency (i.e. color, contrast, or motion) and human heads both attracted gaze to a similar extent, providing a comparison of two vastly different classes of gaze predictors in direct juxtaposition. In study 2, participants with varying degrees of social anxiety walked in a public train station while their eye movements were tracked. With increasing levels of social anxiety, participants showed a relative avoidance of gaze at near compared to distant people. When replicating the experiment in a laboratory situation with a matched participant group, social anxiety did not modulate gaze behavior, fueling the debate around appropriate experimental designs in the field. Study 3 employed virtual reality (VR) to investigate social gaze in a complex and immersive, but still highly controlled situation. In this situation, participants exhibited a gaze behavior which may be more typical for real-life compared to laboratory situations as they avoided gaze contact with a virtual conspecific unless she gazed at them. This study provided important insights into gaze behavior in virtual social situations, helping to better estimate the possible benefits of this new research approach. Throughout all three experiments, participants showed consistent inter-individual differences in their gaze behavior. However, the present work could not resolve if these differences are linked to psychologically meaningful traits or if they instead have an epiphenomenal character.}, subject = {Aufmerksamkeit}, language = {en} } @phdthesis{Botrel2018, author = {Botrel, Loic}, title = {Brain-computer interfaces (BCIs) based on sensorimotor rhythms - Evaluating practical interventions to improve their performance and reduce BCI inefficiency}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-168110}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2018}, abstract = {Brain computer interfaces based on sensorimotor rhythms modulation (SMR-BCIs) allow people to emit commands to an interface by imagining right hand, left hand or feet movements. The neurophysiological activation associated with those specific mental imageries can be measured by electroencephalography and detected by machine learning algorithms. Improvements for SMR-BCI accuracy in the last 30 years seem to have reached a limit. The currrent main issue with SMR-BCIs is that between 15\% to 30\% cannot use the BCI, called the "BCI inefficiency" issue. Alternatively to hardware and software improvements, investigating the individual characteristics of the BCI users has became an interesting approach to overcome BCI inefficiency. In this dissertation, I reviewed existing literature concerning the individual sources of variation in SMR-BCI accuracy and identified generic individual characteristics. In the empirical investigation, attention and motor dexterity predictors for SMR-BCI performance were implemented into a trainings that would manipulate those predictors and lead to higher SMR-BCI accuracy. Those predictors were identified by Hammer et al. (2012) as the ability to concentrate (associated with relaxation levels) and "mean error duration" in a two-hand visuo-motor coordination task (VMC). Prior to a SMR-BCI session, a total of n=154 participants in two locations took part of 23 min sessions of either Jacobson's Progressive Muscle Relaxation session (PMR), a VMC session, or a control group (CG). No effect of PMR or VMC manipulation was found, but the manipulation checks did not consistently confirm whether PMR had an effect of relaxation levels and VMC on "mean error duration". In this first study, correlations between relaxation levels or "mean error duration" and accuracy were found but not in both locations. A second study, involving n=39 participants intensified the training in four sessions on four consecutive days or either PMR, VMC or CG. The effect or manipulation was assessed for in terms of a causal relationship by using a PRE-POST study design. The manipulation checks of this second study validated the positive effect of training on both relaxation and "mean error duration". But the manipulation did not yield a specific effect on BCI accuracy. The predictors were not found again, displaying the instability of relaxation levels and "mean error duration" in being associated with BCI performance. An effect of time on BCI accuracy was found, and a correlation between State Mindfulness Scale and accuracy were reported. Results indicated that a short training of PMR or VMC were insufficient in increasing SMR-BCI accuracy. This study contrasted with studies succeeding in increasing SMR-BCI accuracy Tan et al. (2009, 2014), by the shortness of its training and the relaxation training that did not include mindfulness. It also contrasted by its manipulation checks and its comprehensive experimental approach that attempted to replicate existing predictors or correlates for SMR-BCI accuracy. The prediction of BCI accuracy by individual characteristics is receiving increased attention, but requires replication studies and a comprehensive approach, to contribute to the growing base of evidence of predictors for SMR-BCI accuracy. While short PMR and VMC trainings could not yield an effect on BCI performance, mindfulness meditation training might be beneficial for SMR-BCI accuracy. Moreover, it could be implemented for people in the locked-in-syndrome, allowing to reach the end-users that are the most in need for improvements in BCI performance.}, subject = {Gehirn-Computer-Schnittstelle}, language = {en} } @phdthesis{Beinicke2017, author = {Beinicke, Andrea}, title = {Career Construction Across the Life Span: Career Choice and Career Development}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-117447}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2017}, abstract = {This dissertation contributes to deepen our understanding of constructs that play a key role in individuals' vocational career construction. In this regard, many previous studies have focused exclusively on a specific phase of an individual's career. Yet, modern societies require continuous investments in one's career to adapt to changing Environments throughout the life span. Consequently, this dissertation takes a broad approach to capture a wide spectrum of career construction processes. According to Super's (1990) developmental stage framework, individuals have to manage vocational developmental tasks corresponding to each of the developmental life stages in order to be career mature across the life span. As the two stages exploration and maintenance set the stage for individuals' future career pathways, they are especially important in individuals' vocational career construction. Therefore, both of them are addressed in this dissertation. By answering open research questions relevant to career choice in early career stages and to career development in later career stages, this dissertation contributes to the overarching goal of shedding more light on constructs relevant to individuals' vocational career construction processes across the life span. Beyond the results presented within each study's horizon, this dissertation aimed at offering practical guidance to career counselors, trainees, and training and development (T\&D) professionals. Career counselors and T\&D professionals are involved in guiding vocational career construction processes of individuals across the life span. Thus, on the one hand, this dissertation supports career counselors' work so that they can help deliberating individuals make optimal and effective career choices. On the other hand, this dissertation facilitates T\&D professionals' work so that they can effectively design and evaluate e-learning and classroom trainings in corporate educational settings. Identifying individuals' vocational interests combined with cognitive abilities through adequate test measures and maximizing success of learning and success of transfer through fostering evidence-based transfer support actions will help individuals adapt quickly to the changing nature of work environments in the 21st century and to continue to successfully construct careers across the life span.}, subject = {Karriere}, language = {en} } @phdthesis{Bahnik2016, author = {Bahn{\´i}k, Štěp{\´a}n}, title = {Processing fluency and judgment}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-144656}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2016}, abstract = {To simplify a judgment, people often base it on easily accessible information. One cue that is usually readily available is processing fluency - a metacognitive feeling of ease of cognitive processing. Consequently, processing fluency is used as a cue for many different types of judgment, such as judgment of truth, confidence, and novelty. The present work describes results of three studies investigating various aspects of processing fluency effects on judgment. Processing fluency has been sometimes equated with speed of a cognitive process. Therefore, response times have been used for evaluation of processing fluency. However, response times in experimental tasks often do not encompass only the time needed for a given process, but also the time needed for a decision based on the resulting information. The study described in Chapter II uses a novel experimental method that enables separation of reading and decision times. The results show that people make a decision about liking of pseudowords faster when the pseudowords are hard-to-pronounce (i.e., disfluent) than when they are moderate in pronounceability. This suggests that response times cannot be used as a proxy for processing fluency when they include the time needed to make a decision. One of the studies of judgmental effects of processing fluency showed that food additives with easier pronounceable names are judged to be less harmful than those with hard-to-pronounce names. While people encounter food additives that are safe more often, this environmental association may be in the opposite direction for some categories of objects. For example, people are more likely to see names of especially dangerous criminals in the news. Chapter III describes a study which initially tested whether the fluency-safety association may be in the opposite direction for some categories of objects as a consequence of this selective exposure to especially dangerous exemplars. The results did not show support for this hypothesis. Furthermore, subsequent studies suggest that the previously found association between fluency and safety is replicable with the original stimuli used in the previous research, but not with newly constructed stimuli. Chapter IV describes a study which applied a finding from the processing fluency literature to a positive psychology exercise in order to increase its effectiveness. Namely, the experiment manipulated the number of good things that participants listed daily for two weeks as part of the exercise. While listing more things was considered harder, the number of things listed each day had no effect on effectiveness of the exercise.}, subject = {Urteilen}, language = {en} } @phdthesis{Hennighausen2016, author = {Hennighausen, Anna Christine}, title = {Costly signaling with mobile devices: An evolutionary psychological perspective on smartphones}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-141049}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2016}, abstract = {In the last decade, mobile device ownership has largely increased. In particular, smartphone ownership is constantly rising (A. Smith, 2015; Statista, 2016a), and there is a real hype for luxury brand smartphones (Griffin, 2015). These observations raise the question of which functions smartphones serve in addition to their original purposes of making and receiving calls, searching for information, and organizing. Beyond these obvious functions, studies suggest that smartphones express fashion, lifestyle, and one's economic status (e.g., B{\o}dker et al., 2009; Statista, 2016b; Vanden Abeele, Antheunis, \& Schouten, 2014). Specifically, individuals seem to purchase and use conspicuous luxury brand smartphones to display and enhance status (D. Kim et al., 2014; M{\"u}ller-Lietzkow et al., 2014; Suki, 2013). But how does owning a conspicuous, high-status smartphone contribute to status, and which benefits may these status boosts provide to their owners? From an evolutionary perspective, status carries a lot of advantages, particularly for males; high status grants them priority access to resources and correlates with their mating success (van Vugt \& Tybur, 2016). In this sense, research suggests that men conspicuously display their cell phones to attract mates and to distinguish themselves from rivals (Lycett \& Dunbar, 2000). In a similar vein, evolutionarily informed studies on conspicuous consumption indicate that the purchase and display of conspicuous luxuries (including mobile phones and smartphones) relate to a man's interest in uncommitted sexual relationships and enhance his desirability as a short-term mate (Hennighausen \& Schwab, 2014; Saad, 2013; Sundie et al., 2011). Drawing on these findings, this doctoral dissertation investigated how a man is perceived given that he is an owner of a high-status (vs. nonconspicuous, low-status) smartphone as a romantic partner and male rival. This was done in three experiments. In addition, it was examined how male conspicuous consumption of smartphones interacted with further traits that signal a man's mate quality, namely facial attractiveness (Studies 1 and 2) and social dominance (Study 3). Study 1 revealed that men and women perceived a male owner of a conspicuous smartphone as a less desirable long-term mate and as more inclined toward short-term mating. Study 2 replicated these results and showed that men and women assigned traits that are associated with short-term mating (e.g., low loyalty, interest in flirts, availability of tangible resources) to a male owner of a conspicuous smartphone and perceived him as a stronger male rival and mate poacher, and less as a friend. The results of Study 2 further suggested that specifically more attractive men might benefit from owning a conspicuous smartphone in a short-term mating context and might be hence considered as stronger male rivals. Study 3 partially replicated the findings of Studies 1 and 2 pertaining to the effects of owning a conspicuous smartphone. Study 3 did not show different effects of conspicuous consumption of smartphones on perceptions of a man dependent on the level of his social dominance. To conclude, the findings of this doctoral dissertation suggest that owning a conspicuous, high-status smartphone might not only serve proximate functions (e.g., making and receiving calls, organization) but also ultimate functions, which relate to mating and reproduction. The results indicate that owning a conspicuous smartphone might yield benefits for men in a short-term rather than in a long-term mating context. Furthermore, more attractive men appear to benefit more from owning a conspicuous smartphone than less attractive men. These findings provide further insights into the motivations that underlie men's purchases and displays of conspicuous, high-status smartphones from luxury brands that reach beyond the proximate causes frequently described in media and consumer psychological research. By applying an evolutionary perspective, this doctoral dissertation demonstrates the power and utility of this research paradigm for media psychological research and shows how combining a proximate and ultimate perspective adds to a more profound understanding of smartphone phenomena.}, subject = {Verbraucher}, language = {en} } @phdthesis{Reicherts2013, author = {Reicherts, Philipp}, title = {Cognitive and Emotional Influences on Placebo Analgesia and Nocebo Hyperalgesia}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-106455}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2013}, abstract = {The perception of pain can be modulated by a variety of factors such as biological/pharmacological treatments as well as potent cognitive and emotional manipulations. Placebo and nocebo effects are among the most prominent examples for such manipulations. Placebo and nocebo manipulations cause reliable psychological and physiological changes, although the administered agent or treatment is inert. The present dissertation aimed at investigating the role of cognitive and emotional influences in the generation of placebo and nocebo effects on pain perception. In addition, the feasibility of solely psychological placebo manipulations to alter the perception of pain was tested. Two commonly discussed preconditions for the generation of placebo and nocebo effects are prior experiences (i.e., past encounter of drug effects) and expectations (i.e., positive or negative attitudes towards an intervention). So far, research on placebo and nocebo effects relied on the administration of sham interventions, which resembled medical treatments like inert pills, creams or injections. However, such experimental procedures deal with confounds due to earlier experiences and expectations resulting from the individual's history with medical interventions. Accordingly, the implementation of a placebo manipulation that is completely new to an individual, seems necessary to disentangle the contribution of experience and expectation for the induction of placebo and nocebo effects. To this end, in Experiment 1 the level of experience and expectation regarding a placebo-nocebo treatment was stepwise manipulated across three different experimental groups. To avoid any resemblances to earlier experiences and individual expectations, a mere psychological placebo-nocebo treatment was chosen that was new to all participants. They were instructed that visual black and white stripe patterns had been found to reliably alter the perception of pain. One group of participants received only the placebo-nocebo instruction (expectation), a second group experienced a placebo-nocebo treatment within a conditioning phase (experience) but no instruction, and a third group received the combination of both that is a placebo-nocebo instruction and a placebo-nocebo conditioning (experience + expectation). It was shown that only the experience + expectation group revealed significantly higher pain ratings and physiological responses during nocebo, compared to placebo trials of the succeeding test phase. These findings demonstrate that the induction of a mere psychological placebo-nocebo effect on pain is in principle possible. Most important, results indicate that such effects most likely rely on both, a positive treatment experience, due to the encounter of an effective intervention (placebo conditioning), and a positive expectation about the intervention (placebo instruction).Besides experience and expectation, the current mood state has been shown to modulate pain and to impact the induction of placebo and nocebo effects. In this vein it has been demonstrated that placebo effects come along with positive affect, while nocebo effects often occur together with elevated feelings of anxiety. To clarify the interaction of emotions and placebo-nocebo manipulations on pain perception, in Experiment 2 the paradigm of Experiment 1 was modified. Instead of black and white stripe patterns, positive and negative emotional pictures were presented, which either cued pain increase (nocebo) or pain decrease (placebo). Two experimental groups were compared, which differed with regard to the instructed contingency of positive pictures serving as placebo and negative pictures serving as nocebo cues or vice versa (congruent vs. incongruent). Results indicate that the differentiation of placebo and nocebo trials (behaviorally and physiologically) was more pronounced for the congruent compared to the incongruent group. However, in the incongruent group, affective pain ratings were also significantly higher for nocebo (positive pictures) than placebo (negative pictures) trials, similar to the congruent group. These findings demonstrate that a placebo-nocebo manipulation is capable to dampen and even reverse the originally pain augmenting effect of negative emotions. The results of Experiment 2 were further corroborated in Experiment 3, when the design was adapted to the fMRI scanner, and again a congruent and an incongruent experimental group were compared. Behavioral, physiological and neurophysiological markers of pain processing revealed a differentiation between nocebo and placebo conditions that was present irrespective of the experimental group. In addition, the fMRI analysis revealed an increased engagement of prefrontal areas for the incongruent group only, supposedly reflecting the reinterpretation or appraisal process when positive pictures were cueing negative outcomes. Taken together, the results of the present studies showed (a) that it is possible to induce a placebo-nocebo effect on pain solely by a psychological manipulation, (b) that both, prior experiences and positive expectation, are necessary preconditions for this placebo-nocebo effect, (c) that the impact of negative emotion on pain can be dampened and even reversed by placebo-nocebo manipulations, and (d) that most likely a cognitive top-down process is crucial for the induction of (psychological) placebo-nocebo effects. These results significantly enhance our understanding of psychological mechanisms involved in the induction of placebo-nocebo effects. Further, a fruitful foundation for future studies is provided, which will need to determine the contributions of primarily nocebo or placebo responses mediating the effects as demonstrated in the present studies. In a long-term perspective, the present findings may also help to exploit placebo effects and prevent from nocebo effect in clinical contexts by further elucidating crucial psychological factors that contribute to the placebo and nocebo response.}, subject = {Placebo}, language = {en} } @phdthesis{Zuern2015, author = {Z{\"u}rn, Michael}, title = {The Dual Nature of Utility - Categorical and Comparative Evaluations in Economic Decisions}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-120141}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2015}, abstract = {Utility is perhaps the most central concept in modern economic theorizing. However, the behaviorist reduction to Revealed Preference not only removed the psychological content of utility but experimental investigations also exposed numerous anomalies in this theory. This program of research focused on the psychological processes by which utility judgments are generated. For this purpose, the standard assumption of a homogeneous concept is substituted by the Utilitarian Duality Hypothesis. In particular, judgments concerning categorical utility (uCat) infer an object's category based on its attributes which may subsequently allow the transfer of evaluative information like feelings or attitudes. In contrast, comparative utility (uCom) depends on the distance to a reference value on a specific dimension of comparison. Importantly, dimensions of comparison are manifold and context dependent. In a series of experiments, we show that the resulting Dual Utility Model is able to explain several known anomalies in a parsimonious fashion. Moreover, we identify central factors determining the relative weight assigned to both utility components. Finally, we discuss the implications of the Utilitarian Duality for both, the experimental practice in economics as well as the consequences for economic theorizing. In sum, we propose that the Dual Utility Model can serve as an integrative framework for both the rational model and its anomalies.}, subject = {Nutzen}, language = {en} } @phdthesis{Koerner2014, author = {K{\"o}rner, Anita}, title = {Psychological Mechanisms in Embodied Cleansing}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-112569}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2014}, abstract = {Ein schwerer Rucksack l{\"a}sst H{\"u}gel steiler wirken (Proffitt et al., 2003). Kaum wahrgenommene Ger{\"u}che beeinflussen Ordentlichkeit (Holland, Hendriks, \& Aarts, 2005). Kaubewegungen beeinflussen, als wie vertraut man vorher gesehene Namen bewertet (Topolinski, 2012). Die vorliegende Arbeit besch{\"a}ftigt sich mit derartigen Auswirkungen von k{\"o}rperlichen Zust{\"a}nden, Sinneswahrnehmungen und Handlun- gen auf psychische Zust{\"a}nde und Vorg{\"a}nge, die als Embodiment bezeichnet werden. In der vorliegenden Arbeit wird zuerst Embodiment im Vergleich zur Computer- metapher des Informationsverarbeitungsansatzes definiert und Betrachtungen zu Metaphern f{\"u}r die menschliche Psyche im Allgemeinen aufgestellt. Danach werden verschiedene psychologische Mechanismen f{\"u}r Embodiment-Ph{\"a}nomene aufgezeigt. Kapitel 2 f{\"u}hrt alle Embodiment-Ph{\"a}nomene auf drei verschiedene grundlegende psychische Mechanismen zur{\"u}ck, die alleine oder in Kombination alle Embodiment- Ph{\"a}nomene erkl{\"a}ren k{\"o}nnen. Da die Untersuchung zugrundeliegender Mechanis- men bisher eher wenig verbreitet ist, werden außerdem empirische Testverfahren dargestellt, mit deren Hilfe zwischen verschiedenen Mechanismen f{\"u}r spezifische Ph{\"a}nomene unterschieden werden kann. W{\"a}hrend die Inhalte dieser Arbeit also Embodiment-Ph{\"a}nomene sind, ist die Herangehensweise—die Untersuchung kog- nitiver Prozesse—in der Social Cognition Perspektive verwurzelt. Der empirische Teil der Arbeit untersucht einen spezifischen Embodiment-Effekt genauer, n{\"a}mlich den Einfluss k{\"o}rperlicher Reinigung auf psychische Prozesse, die verk{\"o}rperte Reinigung. In Kapitel 4 wird untersucht, inwiefern sich Hilfsbereitschaft nach eigenem moralischen oder unmoralischen Verhalten durch physikalische Reinigung {\"a}ndert—inwiefern man sich also von einem moralisch positiven oder moralisch negativem Gef{\"u}hl reinwaschen kann (zwei Experimente mit insgesamt 476 Teilnehmern). In Kapitel 5 wird untersucht, wie sich durch physikalische Reinigung die {\"A}nderungen in Optimismus und Selbstwert reduzieren, die durch Erfolg oder Misserfolg in einem vorangehenden Leistungstest hervorgerufen wor- den waren (drei Experimente mit insgesamt 372 Teilnehmern). Die Grundidee bei verk{\"o}rperter Reinigung ist also, dass physikalische Reinigung nicht nur physis- che sondern auch psychische R{\"u}ckst{\"a}nde entfernt. Das heißt, dass der Einfluss vorheriger Erfahrungen durch H{\"a}ndewaschen reduziert werden sollte. In dieser Arbeit sollen die psychologischen Prozesse untersucht werden, die den Einfluss von Reinigung auf die Psyche vermitteln k{\"o}nnten. Ausgehend von be- reits bekannten Auswirkungen k{\"o}rperlicher Reinigung auf verschiedene psychische Prozesse, werden zwei m{\"o}gliche Erkl{\"a}rungen f{\"u}r das Ph{\"a}nomen der verk{\"o}rperten Reinigung kontrastiert und {\"u}ber deren zugrundeliegende Prozesse spekuliert (Kapi- tel 3). Kapitel 4 vergleicht die Effekte verk{\"o}rperter Reinigung, wenn die beiden Erkl{\"a}rungen konvergierende Vorhersagen machen (nach moralisch negativen Erin- nerungen) und wenn die beiden Erkl{\"a}rungen divergierende Vorhersagen machen (nach moralisch positiven Erinnerungen). Kapitel 5 untersucht dann eine der beiden Erkl{\"a}rungen genauer. Daf{\"u}r werden verschiedene Aspekte der Reinigungshandlung variiert um die notwendigen und hinreichenden Kriterien f{\"u}r verk{\"o}rperte Reinigung und damit auch die beteiligten psychischen Prozesse zu untersuchen. Die Ergebnisse des Einflusses verk{\"o}rperter Reinigung in Kapitel 4 sind nicht interpretierbar, weil der vorausgesetzte Einfluss positiver und negativer moralischer Erinnerungen auf prosoziales Verhalten nicht nachweisbar war. Mit ge{\"a}ndertem Grundparadigma ließ sich dann in Kapitel 5 ein stabiler Effekt verk{\"o}rperter Reini- gung nachweisen. Eine Variation verschiedener Faktoren der Reinigung ergab, dass eine intentionale oder zumindest wissentliche Reinigung essentiell ist und dass sich diese Reinigung auf den eigenen K{\"o}rper (und nicht auf einen Gegenstand) bezieht damit physische Reinigung zu psychischer Reinigung f{\"u}hrt. Damit spielen sowohl inferentielle als auch automatisch Prozesse eine Rolle bei Effekten verk{\"o}rperter Reinigung. Zum Abschluss der Arbeit werden die Erkenntnisse und Limitierungen der ak- tuellen Arbeit diskutiert und die beiden m{\"o}glichen Reinigungserkl{\"a}rungen in einen anthropologischen Kontext gestellt. Anschließend wird der hier verfolgte Ansatz mit anderen Arten von Embodiment-Erkl{\"a}rungen verglichen.}, subject = {Psychologie}, language = {en} } @inproceedings{KruegerKohnenLienert1981, author = {Kr{\"u}ger, Hans-Peter and Kohnen, Ralf and Lienert, Gustav A.}, title = {Drei Forderungen zur Pr{\"u}fung der Homogenit{\"a}t von Zentren bei Multicenter-Studien}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-101730}, year = {1981}, abstract = {Es wird argumentiert, daß bei der Pr{\"u}fung der Homgenit{\"a}t von Zentren in mehrfaktoriellen Multicenter-Studien vor allem entscheidend ist, daß sich die Zentren in den faktoriellen Variablen nicht unterscheiden, deren Effekte in der sp{\"a}teren Auswertung interpretiert werden sollen. Dazu wird folgendes Procedere vorgeschlagen: (1) {\"u}berpr{\"u}fe, ob in allen Zentren die Randomisierungsbedingungen eingehalten wurden, (2) {\"u}berpr{\"u}fe, ob die Zentren homogen bezogen auf die eingebrachten Schichtvariablen (z.B. Geschlecht, Indikation) sind und (3) {\"u}berpr{\"u}fe, ob die Zentren homogen sind bezogen auf die Wechselwirkungen zwischen den eingebrachten faktoriellen Variablen. Es wird gezeigt, daß vor allem Forderung (3) f{\"u}r die Interpretationsf{\"a}higkeit der Ergebnisse von entscheidender Bedeutung ist. M{\"o}glichkeiten der statistischen Pr{\"u}fung dieser Voraussetzungen werden an einem Beispiel aus der klinischen Pr{\"u}fung eines Psychopharmakons vorgestellt.}, subject = {Psychologie}, language = {de} } @incollection{Schneider1994, author = {Schneider, Wolfgang}, title = {Methodische Ans{\"a}tze der empirischen Erziehungs- und Sozialisationsforschung}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-87454}, publisher = {Universit{\"a}t W{\"u}rzburg}, year = {1994}, abstract = {No abstract available.}, subject = {Methode}, language = {de} } @misc{Schneider1993, author = {Schneider, Wolfgang}, title = {Gifted children: How different are they? Review of: Lebensumweltanalyse hochbegabter Kinder - Das Marburger Hochbegabtenprojekt}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-87438}, year = {1993}, abstract = {Rezension zu: Detlef H. Rost: Lebensumweltanalyse hochbegabter Kinder - das Marburger Hochbegabtenprojekt. - Seattle, WA: Hogrefe, 1993. - 261 S. - ISBN 3-8017-0479-3}, subject = {Psychologie}, language = {en} } @incollection{KruegerLehmacherWall1981, author = {Kr{\"u}ger, Hans-Peter and Lehmacher, Walter and Wall, K. - D.}, title = {The Fourfold Table up to N=80}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-87053}, publisher = {Universit{\"a}t W{\"u}rzburg}, year = {1981}, abstract = {No abstract available.}, subject = {Psychologie}, language = {en} } @inproceedings{KruegerKohnen1981, author = {Kr{\"u}ger, Hans-Peter and Kohnen, Ralph}, title = {Kognitive, emotionale und physiologische Determinanten sozialer Zust{\"a}nde}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-86055}, year = {1981}, abstract = {The psychological and physiological effects of a socially oriented sensitivity training were evaluated. It is shown that decreased physical distance as well as increased intimacy yields high activation, both in psychological measures (experienced stress) and in pulse frequences. One result (highly significant and replicated in other experiments) was paradoxical: when Ss had to caress the face of a heterosexual vis-a-vis, they reported high experienced stress, but pulse frequences dropped rapidely below the resting pulse. Some suggestions are made to explain these findings. The question arises whether an autonomic somatic process, induced by social Stimulation, but independent of the cognitive coping is responsible for these results.}, subject = {Psychologie}, language = {de} } @inproceedings{OPUS4-9740, title = {Media Psychology - "Media Research: Yesterday, Today, and Tomorrow" Proceedings of the 8th Conference of the Media Psychology Division of the German Psychological Society}, editor = {Schwab, Frank and Carolus, Astrid and Brill, Michael and Hennighausen, Christine}, isbn = {978-3-923959-93-8}, doi = {10.25972/OPUS-9740}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-97403}, pages = {105}, year = {2013}, abstract = {The proceedings of the 8th Conference of the Media Psychology Division of the German Psychological Society hosted by the University of Wuerzburg from the 4th until the 6th of September 2013 contains the abstracts of the conference participants. Following the motto of the conference "Media Research: Yesterday, Today, and Tomorrow" a large number of media-psychological topics was dealt with. Amongst others, participants presented their research on interactive learning, emotions, virtual agents and avatars, gaming, scientific communication, politics, motion pictures and entertainment, social media, methods, and persuasions.}, subject = {Deutsche Gesellschaft f{\"u}r Psychologie / Fachgruppe Medienpsychologie}, language = {en} } @article{PauliHerschbachWeineretal.1992, author = {Pauli, Paul and Herschbach, P. and Weiner, H. and von Rad, M.}, title = {Psychologische Faktoren der Non-Ulcer Dyspepsia (NUD)}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-80202}, year = {1992}, abstract = {Given the absence of any demonstrable organic reason for non~ulcer dyspepsia. and the weil known fact, that the psyche inOuences stomach function, it is widely held, that psychological factors cause NUD. To now, studies are concerned with the psychopathology and personality of NUDpatients, their illness behaviour, and with the relation between stress and abdominal pain. A critical review of these studies revea1ed, that among the psycho1ogical variables majnly anxiety and illness behaviour seems to playa central role in NUD. However. future studjes should focus more on the distinction towards other func{\"u}onal disorders and on the djfferentation within the heterogeneous group of NUD~ patients (especially with regard to physiological variables). Besides this, it seems rewarding to examine the so far seienlifidy neglected group of subjects with abdomina] pain, who do not contact a physician.}, subject = {Psychologie}, language = {de} } @inproceedings{Macht1994, author = {Macht, Michael}, title = {Kovariation und Dissoziation psychophysiologischer Variablen unter kurzzeitig verminderter Energiezufuhr}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-80187}, year = {1994}, abstract = {no abstract available}, subject = {Psychologie}, language = {de} } @inproceedings{KrebsJankeMachtetal.1994, author = {Krebs, H. and Janke, W. and Macht, Michael and Weijers, H.-G. and Weyers, P.}, title = {Differentielle Tierpsychologie: Hypo- und hyperphage Reaktionen unter Streß}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-80175}, year = {1994}, abstract = {no abstract available}, subject = {Psychologie}, language = {de} } @inproceedings{KruegerRausche1980, author = {Kr{\"u}ger, Hans-Peter and Rausche, A.}, title = {Die Pr{\"u}fung von Verlaufskurven auf das Vorliegen von Trends {\"u}ber die exakte Verteilung von Spearman's S}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-79827}, year = {1980}, abstract = {no abstract available}, subject = {Psychologie}, language = {de} } @article{Stoeber1994, author = {St{\"o}ber, Gerald}, title = {Schwangerschaftsinfektionen bei M{\"u}ttern von chronisch Schizophrenen: die Bedeutung einer differenzierten Nosologie}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-78438}, year = {1994}, abstract = {In einer retrospektiven Untersuchung erinnerten 16 von 80 M{\"u}ttern von chronisch Schizophrenen eine schwere Infektionserkrankung in der Schwangerschaft. Im zweiten Trimenon waren geh{\"a}uft Infektionen aufgetreten. Zehn von 80 M{\"u}ttern von Kontrollpersonen erinnerten ebenfalls eine Infektion. Im Vergleich zu den Kontrollen halfen M{\"u}tter Schizophrener im 5. Schwangerschaftsmonat h{\"a}ufiger Infektionen als in den anderen Gestationsmonaten (p < 0,05). Bei "famili{\"a}ren" und "sporadischen" Schizophrenen gem{\"a}ß DSM III-R kamen im Vergleich zu Kontrollen Infektionen in gleicher H{\"a}ufigkeit vor. Wurden hingegen in der Diagnostik schizophrener Psychosen die Definitionen von Leonhard zugrunde gelegt, ergaben sich signifikante Unterschiede! Bei den systematischen Schizophrenen (denen nach Leonhard keine erbliche Disposition zugrunde liegt) waren Infektionen geh{\"a}uft im 2. Schwangerschaftsdrittel aufgetreten, sowohl im Vergleich zu Kontrollen (p < 0,01) als auch im Vergleich zu den unsystematischen Schizophrenen, die haupts{\"a}chlich genetisch bedingt zu sein scheinen (p < 0,001). Infektionserkrankungen im 5. Schwangerschaftsmonat waren ausschließlich bei den M{\"u}ttern von systematischen Schizophrenen vorgekommen. Bei diesen Krankheitsformen scheinen Infektionen im 2. Schwangerschaftstrimenon und insbesondere im 5. Schwangerschaftsmonat wichtige {\"a}tiologische Faktoren zu sein und k{\"o}nnten miturs{\"a}chlich sein f{\"u}r die beschriebenen zytoarchitektonischen Aberrationen im Zentralnervensystem von chronisch Schizophrenen.}, subject = {Medizin}, language = {de} } @article{HerbertKueblerVoegele2013, author = {Herbert, Cornelia and K{\"u}bler, Andrea and V{\"o}gele, Klaus}, title = {Risk for Eating Disorders Modulates Startle-Responses to Body Words}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-78140}, year = {2013}, abstract = {Body image disturbances are core symptoms of eating disorders (EDs). Recent evidence suggests that changes in body image may occur prior to ED onset and are not restricted to in-vivo exposure (e.g. mirror image), but also evident during presentation of abstract cues such as body shape and weight-related words. In the present study startle modulation, heart rate and subjective evaluations were examined during reading of body words and neutral words in 41 student female volunteers screened for risk of EDs. The aim was to determine if responses to body words are attributable to a general negativity bias regardless of ED risk or if activated, ED relevant negative body schemas facilitate priming of defensive responses. Heart rate and word ratings differed between body words and neutral words in the whole female sample, supporting a general processing bias for body weight and shape-related concepts in young women regardless of ED risk. Startle modulation was specifically related to eating disorder symptoms, as was indicated by significant positive correlations with self-reported body dissatisfaction. These results emphasize the relevance of examining body schema representations as a function of ED risk across different levels of responding. Peripheral-physiological measures such as the startle reflex could possibly be used as predictors of females' risk for developing EDs in the future.}, subject = {Psychologie}, language = {en} } @article{HalderHammerKleihetal.2013, author = {Halder, Sebastian and Hammer, Eva Maria and Kleih, Sonja Claudia and Bogdan, Martin and Rosenstiel, Wolfgang and Birbaumer, Nils and K{\"u}bler, Andrea}, title = {Prediction of Auditory and Visual P300 Brain-Computer Interface Aptitude}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-77992}, year = {2013}, abstract = {Objective: Brain-computer interfaces (BCIs) provide a non-muscular communication channel for patients with late-stage motoneuron disease (e.g., amyotrophic lateral sclerosis (ALS)) or otherwise motor impaired people and are also used for motor rehabilitation in chronic stroke. Differences in the ability to use a BCI vary from person to person and from session to session. A reliable predictor of aptitude would allow for the selection of suitable BCI paradigms. For this reason, we investigated whether P300 BCI aptitude could be predicted from a short experiment with a standard auditory oddball. Methods: Forty healthy participants performed an electroencephalography (EEG) based visual and auditory P300-BCI spelling task in a single session. In addition, prior to each session an auditory oddball was presented. Features extracted from the auditory oddball were analyzed with respect to predictive power for BCI aptitude. Results: Correlation between auditory oddball response and P300 BCI accuracy revealed a strong relationship between accuracy and N2 amplitude and the amplitude of a late ERP component between 400 and 600 ms. Interestingly, the P3 amplitude of the auditory oddball response was not correlated with accuracy. Conclusions: Event-related potentials recorded during a standard auditory oddball session moderately predict aptitude in an audiory and highly in a visual P300 BCI. The predictor will allow for faster paradigm selection. Significance: Our method will reduce strain on patients because unsuccessful training may be avoided, provided the results can be generalized to the patient population.}, subject = {Psychologie}, language = {en} } @article{HerbortButz2012, author = {Herbort, Oliver and Butz, Martin V.}, title = {Too good to be true? Ideomotor theory from a computational perspective}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-76383}, year = {2012}, abstract = {In recent years, Ideomotor Theory has regained widespread attention and sparked the development of a number of theories on goal-directed behavior and learning. However, there are two issues with previous studies' use of Ideomotor Theory. Although Ideomotor Theory is seen as very general, it is often studied in settings that are considerably more simplistic than most natural situations. Moreover, Ideomotor Theory's claim that effect anticipations directly trigger actions and that action-effect learning is based on the formation of direct action-effect associations is hard to address empirically. We address these points from a computational perspective. A simple computational model of Ideomotor Theory was tested in tasks with different degrees of complexity.The model evaluation showed that Ideomotor Theory is a computationally feasible approach for understanding efficient action-effect learning for goal-directed behavior if the following preconditions are met: (1) The range of potential actions and effects has to be restricted. (2) Effects have to follow actions within a short time window. (3) Actions have to be simple and may not require sequencing. The first two preconditions also limit human performance and thus support Ideomotor Theory. The last precondition can be circumvented by extending the model with more complex, indirect action generation processes. In conclusion, we suggest that IdeomotorTheory offers a comprehensive framework to understand action-effect learning. However, we also suggest that additional processes may mediate the conversion of effect anticipations into actions in many situations.}, subject = {Psychologie}, language = {en} } @misc{WieserBrosch2012, author = {Wieser, Mattias J. and Brosch, Tobias}, title = {Faces in context: A review and systematization of contextual influences on affective face processing}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-76351}, year = {2012}, abstract = {Facial expressions are of eminent importance for social interaction as they convey information about other individuals' emotions and social intentions. According to the predominant "basic emotion" approach, the perception of emotion in faces is based on the rapid, auto- matic categorization of prototypical, universal expressions. Consequently, the perception of facial expressions has typically been investigated using isolated, de-contextualized, static pictures of facial expressions that maximize the distinction between categories. However, in everyday life, an individual's face is not perceived in isolation, but almost always appears within a situational context, which may arise from other people, the physical environment surrounding the face, as well as multichannel information from the sender. Furthermore, situational context may be provided by the perceiver, including already present social infor- mation gained from affective learning and implicit processing biases such as race bias.Thus, the perception of facial expressions is presumably always influenced by contextual vari- ables. In this comprehensive review, we aim at (1) systematizing the contextual variables that may influence the perception of facial expressions and (2) summarizing experimental paradigms and findings that have been used to investigate these influences. The studies reviewed here demonstrate that perception and neural processing of facial expressions are substantially modified by contextual information, including verbal, visual, and auditory information presented together with the face as well as knowledge or processing biases already present in the observer. These findings further challenge the assumption of auto- matic, hardwired categorical emotion extraction mechanisms predicted by basic emotion theories. Taking into account a recent model on face processing, we discuss where and when these different contextual influences may take place, thus outlining potential avenues in future research.}, subject = {Psychologie}, language = {en} } @phdthesis{Schubert2012, author = {Schubert, Lisa}, title = {The Respective Impact of Stimulus Valence and Processing Fluency on Evaluative Judgments in Stereotype Disconfirmation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-77426}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2012}, abstract = {Both specific stimulus valence and unspecific processing dynamics can influence evaluative responses. Eight experiments investigated their respective influence on evaluative judgments in the domain of stereotyping. Valence of stereotypic information and consistency-driven fluency were manipulated in an impression formation paradigm. When information about the to-be-evaluated target person was strongly valenced, no effects of consistency-driven fluency were observed. Higher cognitive processes, valence of inconsistent attributes, processing priority of category information, and impression formation instructions were ruled out as possible factors responsible for the non-occurrence of fluency effects. However, consistency-driven fluency did influence the evaluative judgment, if the information about a target person was not strongly valenced. It is therefore concluded that both stimulus valence and consistency-driven processing fluency play a role in evaluative judgments in the domain of stereotyping. The respective impact of stimulus valence is much stronger than the impact of unspecific processing dynamics, however. Implications for fluency research and the applied field of stereotype change are discussed.}, subject = {Vorurteil}, language = {en} } @article{HaeringKiesel2012, author = {Haering, Carola and Kiesel, Andrea}, title = {Mine is earlier than yours: Causal beliefs influence the perceived time of action effects}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-76229}, year = {2012}, abstract = {When a key press causes a stimulus, the key press is perceived later and the stimulus earlier than key presses and stimuli presented independently. This bias in time perception has been linked to the intention to produce the effect and thus been called intentional binding (IB). In recent studies it has been shown that the IB effect is stronger when participants believed that they caused the effect stimulus compared to when they believed that another person caused the effect (Desantis et al., 2011). In this experiment we ask whether causal beliefs influence the perceived time of an effect when the putative effect occurs temporally close to another stimulus that is also an effect. In our study two participants performed the same task on connected computers with separate screens. Each trial started synchro- nously on both computers. When a participant pressed a key, a red and a yellow stimulus appeared as action effects simultaneously or with a slight delay of up to 50 ms. The partic- ipants' task was to judge the temporal order of these two effect stimuli. Participants were either told that one participant caused one of the two stimuli while the other participant seated at the other computer caused the other stimulus, or each participant was told that he/she caused both stimuli. The different causal beliefs changed the perceived time of the effects' appearance relative to each other. When participants believed they each caused one effect, their "own" effect was perceived earlier than the other participant's effect. When the participants believed each caused both effects, no difference in the perceived temporal order of the red and yellow effect was found. These results confirm that higher order causal beliefs change the perceived time of an action effect even in a setting in which the occurrence of the putative effect can be directly compared to a reference stimulus.}, subject = {Psychologie}, language = {en} } @article{JanczykHeinemannPfister2012, author = {Janczyk, Markus and Heinemann, Alexander and Pfister, Roland}, title = {Instant attraction: Immediate action-effect bindings occur for both, stimulus- and goal-driven actions}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-76203}, year = {2012}, abstract = {Flexible behavior is only possible if contingencies between own actions and following environmental effects are acquired as quickly as possible; and recent findings indeed point toward an immediate formation of action-effect bindings already after a single coupling of an action and its effect. The present study explored whether these short-term bindings occur for both, stimulus- and goal-driven actions ("forced-choice actions" vs. "free-choice actions"). Two experiments confirmed that immediate action-effect bindings are formed for both types of actions and affect upcoming behavior. These findings support the view that action-effect binding is a ubiquitous phenomenon which occurs for any type of action.}, subject = {Psychologie}, language = {en} } @article{HerbertSuetterlin2012, author = {Herbert, Cornelia and S{\"u}tterlin, Stefan}, title = {Do not respond! Doing the think/no-think and go/no-go tasks concurrently leads to memory impairment of unpleasant items during later recall}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-76028}, year = {2012}, abstract = {Previous research using neuroimaging methods proposed a link between mechanisms controlling motor response inhibition and suppression of unwanted memories.The present study investigated this hypothesis behaviorally by combining the think/no-think paradigm (TNT) with a go/no-go motor inhibition task. Participants first learned unpleasant cue-target pairs. Cue words were then presented as go or no-go items in the TNT. Participants' task was to respond to the cues and think of the target word aloud or to inhibit their response to the cue and the target word from coming to mind. Cued recall assessed immediately after the TNT revealed reduced recall performance for no-go targets compared to go targets or baseline cues not presented in the TNT. The results demonstrate that doing the no-think and no-go task concurrently leads to memory suppression of unpleasant items during later recall. Results are discussed in line with recent empirical research and theoretical positions.}, subject = {Psychologie}, language = {en} } @misc{FazelRezaiAllisonGugeretal.2012, author = {Fazel-Rezai, Reza and Allison, Brendan Z. and Guger, Christoph and Sellers, Eric W. and Kleih, Sonja C. and K{\"u}bler, Andrea}, title = {P300 brain computer interface: current challenges and emerging trends}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-75941}, year = {2012}, abstract = {A brain-computer interface (BCI) enables communication without movement based on brain signals measured with electroencephalography (EEG). BCIs usually rely on one of three types of signals: the P300 and other components of the event-related potential (ERP), steady state visual evoked potential (SSVEP), or event related desynchronization (ERD). Although P300 BCIs were introduced over twenty years ago, the past few years have seen a strong increase in P300 BCI research. This closed-loop BCI approach relies on the P300 and other components of the ERP, based on an oddball paradigm presented to the subject. In this paper, we overview the current status of P300 BCI technology, and then discuss new directions: paradigms for eliciting P300s; signal processing methods; applications; and hybrid BCIs. We conclude that P300 BCIs are quite promising, as several emerging directions have not yet been fully explored and could lead to improvements in bit rate, reliability, usability, and flexibility.}, subject = {Psychologie}, language = {en} } @article{LikowskiMuehlbergerGerdesetal.2012, author = {Likowski, Katja U. and M{\"u}hlberger, Andreas and Gerdes, Antje B. M. and Wieser, Mattias J. and Pauli, Paul and Weyers, Peter}, title = {Facial mimicry and the mirror neuron system: simultaneous acquisition of facial electromyography and functional magnetic resonance imaging}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-75813}, year = {2012}, abstract = {Numerous studies have shown that humans automatically react with congruent facial reactions, i.e., facial mimicry, when seeing a vis-{\´a}-vis' facial expressions. The current experiment is the first investigating the neuronal structures responsible for differences in the occurrence of such facial mimicry reactions by simultaneously measuring BOLD and facial EMG in an MRI scanner. Therefore, 20 female students viewed emotional facial expressions (happy, sad, and angry) of male and female avatar characters. During picture presentation, the BOLD signal as well as M. zygomaticus major and M. corrugator supercilii activity were recorded simultaneously. Results show prototypical patterns of facial mimicry after correction for MR-related artifacts: enhanced M. zygomaticus major activity in response to happy and enhanced M. corrugator supercilii activity in response to sad and angry expressions. Regression analyses show that these congruent facial reactions correlate significantly with activations in the IFG, SMA, and cerebellum. Stronger zygomaticus reactions to happy faces were further associated to increased activities in the caudate, MTG, and PCC. Corrugator reactions to angry expressions were further correlated with the hippocampus, insula, and STS. Results are discussed in relation to core and extended models of the mirror neuron system (MNS).}, subject = {Psychologie}, language = {en} } @article{TobiasVoelkerGuneschetal.2012, author = {Tobias, Kaufmann and V{\"o}lker, Stefan and Gunesch, Laura and K{\"u}bler, Andrea}, title = {Spelling is just a click away - a user-centered brain-computer interface including auto-calibration and predictive text entry}, doi = {10.3389/fnins.2012.00072}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-75739}, year = {2012}, abstract = {Brain-computer interfaces (BCI) based on event-related potentials (ERP) allow for selection of characters from a visually presented character-matrix and thus provide a communica- tion channel for users with neurodegenerative disease. Although they have been topic of research for more than 20 years and were multiply proven to be a reliable communication method, BCIs are almost exclusively used in experimental settings, handled by qualified experts. This study investigates if ERP-BCIs can be handled independently by laymen without expert support, which is inevitable for establishing BCIs in end-user's daily life situations. Furthermore we compared the classic character-by-character text entry against a predictive text entry (PTE) that directly incorporates predictive text into the character- matrix. N = 19 BCI novices handled a user-centered ERP-BCI application on their own without expert support. The software individually adjusted classifier weights and control parameters in the background, invisible to the user (auto-calibration). All participants were able to operate the software on their own and to twice correctly spell a sentence with the auto-calibrated classifier (once with PTE, once without). Our PTE increased spelling speed and, importantly, did not reduce accuracy. In sum, this study demonstrates feasi- bility of auto-calibrating ERP-BCI use, independently by laymen and the strong benefit of integrating predictive text directly into the character-matrix.}, subject = {Psychologie}, language = {en} } @article{SchwerdtleKanisKahletal.2012, author = {Schwerdtle, Barbara and Kanis, Julia and Kahl, Lena and K{\"u}bler, Andrea and Schlarb, Angelika A.}, title = {Children's Sleep Comic: development of a new diagnostic tool for children with sleep disorders [original research]}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-75722}, year = {2012}, abstract = {Background: A solid diagnosis of sleep disorders in children should include both self-ratings and parent ratings. However, there are few standardized self-assessment instruments to meet this need. The Children's Sleep Comic is an adapted version of the unpublished German questionnaire "Freiburger Kinderschlafcomic" and provides pictures for items and responses. Because the drawings were outdated and allowed only for qualitative analysis, we revised the comic, tested its applicability in a target sample, and suggest a procedure for quantitative analysis. Methods: All items were updated and pictures were newly drawn. We used a sample of 201 children aged 5-10 years to test the applicability of the Children's Sleep Comic in young children and to run a preliminary analysis. Results: The Children's Sleep Comic comprises 37 items covering relevant aspects of sleep disorders in children. Application took on average 30 minutes. The procedure was well accepted by the children, as reflected by the absence of any dropouts. First comparisons with established questionnaires indicated moderate correlations. Conclusion: The Children's Sleep Comic is appropriate for screening sleep behavior and sleep problems in children. The interactive procedure can foster a good relationship between the investigator and the child, and thus establish the basis for successful intervention if necessary.}, subject = {Psychologie}, language = {en} } @article{KirschHerbortButzetal.2012, author = {Kirsch, Wladimir and Herbort, Oliver and Butz, Martin V. and Kunde, Wilfried}, title = {Influence of Motor Planning on Distance Perception within the Peripersonal Space}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-75332}, year = {2012}, abstract = {We examined whether movement costs as defined by movement magnitude have an impact on distance perception in near space. In Experiment 1, participants were given a numerical cue regarding the amplitude of a hand movement to be carried out. Before the movement execution, the length of a visual distance had to be judged. These visual distances were judged to be larger, the larger the amplitude of the concurrently prepared hand movement was. In Experiment 2, in which numerical cues were merely memorized without concurrent movement planning, this general increase of distance with cue size was not observed. The results of these experiments indicate that visual perception of near space is specifically affected by the costs of planned hand movements.}, subject = {Psychologie}, language = {en} } @article{PfisterPohlKieseletal.2012, author = {Pfister, Roland and Pohl, Carsten and Kiesel, Andrea and Kunde, Wilfried}, title = {Your Unconscious Knows Your Name}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-75304}, year = {2012}, abstract = {One's own name constitutes a unique part of conscious awareness - but does this also hold true for unconscious processing? The present study shows that the own name has the power to bias a person's actions unconsciously even in conditions that render any other name ineffective. Participants judged whether a letter string on the screen was a name or a non-word while this target stimulus was preceded by a masked prime stimulus. Crucially, the participant's own name was among these prime stimuli and facilitated reactions to following name targets whereas the name of another, yoked participant did not. Signal detection results confirmed that participants were not aware of any of the prime stimuli, including their own name. These results extend traditional findings on ''breakthrough'' phenomena of personally relevant stimuli to the domain of unconscious processing. Thus, the brain seems to possess adroit mechanisms to identify and process such stimuli even in the absence of conscious awareness.}, subject = {Psychologie}, language = {en} } @article{HerbertKuebler2011, author = {Herbert, Cornelia and K{\"u}bler, Andrea}, title = {Dogs Cannot Bark: Event-Related Brain Responses to True and False Negated Statements as Indicators of Higher-Order Conscious Processing}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-74907}, year = {2011}, abstract = {The present study investigated event-related brain potentials elicited by true and false negated statements to evaluate if discrimination of the truth value of negated information relies on conscious processing and requires higher-order cognitive processing in healthy subjects across different levels of stimulus complexity. The stimulus material consisted of true and false negated sentences (sentence level) and prime-target expressions (word level). Stimuli were presented acoustically and no overt behavioral response of the participants was required. Event-related brain potentials to target words preceded by true and false negated expressions were analyzed both within group and at the single subject level. Across the different processing conditions (word pairs and sentences), target words elicited a frontal negativity and a late positivity in the time window from 600-1000 msec post target word onset. Amplitudes of both brain potentials varied as a function of the truth value of the negated expressions. Results were confirmed at the single-subject level. In sum, our results support recent suggestions according to which evaluation of the truth value of a negated expression is a time- and cognitively demanding process that cannot be solved automatically, and thus requires conscious processing. Our paradigm provides insight into higher-order processing related to language comprehension and reasoning in healthy subjects. Future studies are needed to evaluate if our paradigm also proves sensitive for the detection of consciousness in non-responsive patients.}, subject = {Psychologie}, language = {en} } @article{Pfister2011, author = {Pfister, Roland}, title = {Wardrobe Malfunctions and the Measurement of Internet Behaviour}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-69067}, year = {2011}, abstract = {The wardrobe malfunction—an unanticipated exposure of bodily parts in the public—has become a prevailing issue in concerts, shows and other celebrity events that is reliably reported by the media. The internet as the fastest source for celebrity gossip allows measuring the impact of such wardrobe malfunctions on the public in-terest in a celebrity. This measurement in turn allows conclusions about intention, motivation, and internet be-haviour of a wide variety of internet users. The present study exemplifies the use of an innovative non-reactive measure of active interest—the Search Volume Index—to assess the impact of a variety of internet-related phe-nomena, including wardrobe malfunctions. Results indicate that interest in a celebrity increases immediately af-ter such an event and stays at a high level for about three weeks (the wardrobe plateau). This special form of ce-lebrity gossip thus meets a constant interest of a substantial proportion of internet users.}, subject = {Psychologie}, language = {en} } @article{PauliHartlMarquardtetal.1991, author = {Pauli, Paul and Hartl, Lydia and Marquardt, Christian and Stalmann, Henrica and Strian, Friedrich}, title = {Heartbeat and arrhythmia perception in diabetic autonomic neuropathy}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-73599}, year = {1991}, abstract = {A comparative study of diabetics with autonomic neuropathy (N = 13) as against nonneuropathic diabetics (N = 16) and healthy control persons (N = 20) was carried out with respect 10 heart rate both at rest and under stress, frequency of cardiac arrhythmias in a 24-h ECG and accuracy of heartbeat and arrhythmia perception. In the subjects with diabetic autonomic neuropathy, the spontaneaus variability and stress-induced reactivity of the heart rate as weil as the number of tachycardic episodes were reduced, whereas the frequency of ventricular extrasystoles was somewhat increased. Impaired heartbeat perception and a complete Ioss of perception of arrhythmias as a consequence of neuropathic deafferentation could be demonstrated. Cardiac perception disordersalso playavital roJe in other clinical problems, e.g. silent myocardial infarction and Iack of awareness of hypoglycaemia in diabetes mellitus.}, subject = {Psychologie}, language = {en} } @article{MuenssingerHalderKleihetal.2010, author = {M{\"u}nßinger, Jana I. and Halder, Sebastian and Kleih, Sonja C. and Furdea, Adrian and Raco, Valerio and H{\"o}sle, Adi and K{\"u}bler, Andrea}, title = {Brain Painting: first evaluation of a new brain-computer interface application with ALS-patients and healthy volunteers}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-68168}, year = {2010}, abstract = {Brain-computer interfaces (BCIs) enable paralyzed patients to communicate; however, up to date, no creative expression was possible. The current study investigated the accuracy and user-friendliness of P300-Brain Painting, a new BCI application developed to paint pictures using brain activity only. Two different versions of the P300-Brain Painting application were tested: A colored matrix tested by a group of ALS-patients (n = 3) and healthy participants (n = 10), and a black and white matrix tested by healthy participants (n = 10). The three ALS-patients achieved high accuracies; two of them reaching above 89\% accuracy. In healthy subjects, a comparison between the P300-Brain Painting application (colored matrix) and the P300-Spelling application revealed significantly lower accuracy and P300 amplitudes for the P300-Brain Painting application. This drop in accuracy and P300 amplitudes was not found when comparing the P300-Spelling application to an adapted, black and white matrix of the P300-Brain Painting application. By employing a black and white matrix, the accuracy of the P300-Brain Painting application was significantly enhanced and reached the accuracy of the P300-Spelling application. ALS-patients greatly enjoyed P300-Brain Painting and were able to use the application with the same accuracy as healthy subjects. P300-Brain Painting enables paralyzed patients to express themselves creatively and to participate in the prolific society through exhibitions.}, subject = {Psychologie}, language = {en} } @article{GerdesWieserMuehlbergeretal.2010, author = {Gerdes, Antje B. M. and Wieser, Matthias J. and M{\"u}hlberger, Andreas and Weyers, Peter and Alpers, Georg W. and Plichta, Michael M. and Breuer, Felix and Pauli, Paul}, title = {Brain activations to emotional pictures are differentially associated with valence and arousal ratings}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-68153}, year = {2010}, abstract = {Several studies have investigated the neural responses triggered by emotional pictures, but the specificity of the involved structures such as the amygdala or the ventral striatum is still under debate. Furthermore, only few studies examined the association of stimuli's valence and arousal and the underlying brain responses. Therefore, we investigated brain responses with functional magnetic resonance imaging of 17 healthy participants to pleasant and unpleasant affective pictures and afterwards assessed ratings of valence and arousal. As expected, unpleasant pictures strongly activated the right and left amygdala, the right hippocampus, and the medial occipital lobe, whereas pleasant pictures elicited significant activations in left occipital regions, and in parts of the medial temporal lobe. The direct comparison of unpleasant and pleasant pictures, which were comparable in arousal clearly indicated stronger amygdala activation in response to the unpleasant pictures. Most important, correlational analyses revealed on the one hand that the arousal of unpleasant pictures was significantly associated with activations in the right amygdala and the left caudate body. On the other hand, valence of pleasant pictures was significantly correlated with activations in the right caudate head, extending to the nucleus accumbens (NAcc) and the left dorsolateral prefrontal cortex. These findings support the notion that the amygdala is primarily involved in processing of unpleasant stimuli, particularly to more arousing unpleasant stimuli. Reward-related structures like the caudate and NAcc primarily respond to pleasant stimuli, the stronger the more positive the valence of these stimuli is.}, subject = {Psychologie}, language = {en} } @article{WeyersJankeMachtetal.1993, author = {Weyers, P. and Janke, W. and Macht, Michael and Weijers, H.-G.}, title = {Social and nonsocial open field behaviour of rats under light and noise stimulation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-61246}, year = {1993}, abstract = {ln two experiments, male rats were observed in pairs under different environmental stimulations in an open field. ln Experiment 1, white noise of 85 dB(A) reduced social activities and increased defecation compared to 75 dB(A) and 65 dß(A). ln Experiment 2, the illumination of the open field was varied in addition to a variation of the noise intensity. Again, 85 dB(A) as compared to 50 dB(A) reduced social activities and increased defecation, but also led to changes in non-social behaviours such as sniffing, grooming, and rearing. ln contrast, 400 lx did not differ substantially in its effects from 40 lx in any of the observed behavioural categories. Altogether, the behaviour pattern under 85 dß(A) white noise cannot satisfactorily be explained only by increased anxiety or fear. Alternative explanations are discussed.}, subject = {Psychologie}, language = {en} } @article{PressleyBorkowskiSchneider1990, author = {Pressley, Michael and Borkowski, John G. and Schneider, Wolfgang}, title = {Good information processing: What it is and how education can promote it}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62127}, year = {1990}, abstract = {The nature of good information processing is outlined as determined by intact neurology, information stored in long-term memory, and general cognitive tendencies, attitudes, and styles. Educators can promote the development of good information processing by promoting what is in long-term memory. This can be accomplished by teaching important literary, scientific, and cultural knowledge; teaching strategies; motivating the acquisition and use of important conceptual knowledge and strategies; and encouraging the general tendencies supporting good information processing. Good information processing can be produced by years of appropriate educational input. Good information processors cannot be produced by short-term interventions.}, subject = {Psychologie}, language = {en} } @article{SchneiderKoerkelWeinert1989, author = {Schneider, Wolfgang and K{\"o}rkel, Joachim and Weinert, Franz E.}, title = {Domain-Specific Knowledge and Memory Performance: A Comparison of High- and Low-Aptitude Children}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62107}, year = {1989}, abstract = {Two studies compared memory performance and text comprehension of groups that were equivalent on domain-specific knowledge but differed in overall aptitude, to investigate whether prior knowledge about a particular domain or overall aptitude level was more important when the task was to acquire and use new information in the domain of interest. Both studies dealt with third-, fifth-, and seventh-grade soccer experts' and novices' memory and comprehension of a story dealing with a soccer game. Several measures of memory performance, memory monitoring, and text comprehension were used. Levels of soccer knowledge and of overall aptitude were varied in a factorial design. Neither study detected significant differences between high-aptitude and low-aptitude experts, regardless of their ages. Low aptitude experts outperformed high-aptitude novices on all memory and comprehension measures. The results indicate that domain-specific knowledge can compensate for low overall aptitude on domain-related cognitive tasks.}, subject = {Psychologie}, language = {en} } @article{KurtzCostesSchneider1994, author = {Kurtz-Costes, Beth E. and Schneider, Wolfgang}, title = {Self-concept, attributional beliefs, and school achievement: A longitudinal analysis}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62245}, year = {1994}, abstract = {No abstract available}, subject = {Psychologie}, language = {en} } @article{BjorklundSchneiderCasseletal.1994, author = {Bjorklund, David F. and Schneider, Wolfgang and Cassel, William S. and Ashley, Elizabeth}, title = {Training and Extension of a Memory Strategy: Evidence for Utilization Deficiencies in the Acquisition of an Organizational Strategy in High- and Low-IQ Children}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62234}, year = {1994}, abstract = {143 9- and 10-year-oId children were classified into high- and Jow-IQ groups and given 4 different sort/recall lists (baseline, training, near [immediate] extension, far [l-week] extension) to assess training and extension of an organizational memory strategy. All children received categorized items of moderate typicality for Phases 1, 3, and 4. For Phase 2, children were assigned to either a training or control group, with half of the children in each group receiving category typical items and the others category atypical items. Levels of recall, sorting, and clustering were greater in Phase 2 for high-IQ children, for the typical lists, and for trained children. Both the high- and low-IQ children trained with typical items continued to show high levels of recall on the near extension phase. No group of subjects maintained high levels of recall after 1 week, although levels of sorting and/or clustering on the extension trials remained high for all groups of subjects except the low-IQ control children. This latter pattern (elevated sorting/clustering with low levels of recall) is an indication of a utilization deficiency, a phase in strategy development when children use a strategy but gain little or no benefit n performance. The results provide evidence for IQ, training, and material effects in the demonstration of a utilization deficiency.}, subject = {Psychologie}, language = {en} } @article{RabinowitzOrnsteinFoldsBennettetal.1994, author = {Rabinowitz, Mitchell and Ornstein, Peter A. and Folds-Bennett, Trisha H. and Schneider, Wolfgang}, title = {Age-related differences in speed of processing: Unconfounding age and experience}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-62223}, year = {1994}, abstract = {No abstract available}, subject = {Psychologie}, language = {en} }