@article{WinterKernGalletal.2021, author = {Winter, Carla and Kern, Florian and Gall, Dominik and Latoschik, Marc Erich and Pauli, Paul and K{\"a}thner, Ivo}, title = {Immersive virtual reality during gait rehabilitation increases walking speed and motivation: a usability evaluation with healthy participants and individuals with multiple sclerosis and stroke}, series = {Journal of Neuroengineering and Rehabilitation}, volume = {18}, journal = {Journal of Neuroengineering and Rehabilitation}, number = {1}, issn = {1743-0003}, doi = {10.1186/s12984-021-00848-w}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-258698}, year = {2021}, abstract = {Background: The rehabilitation of gait disorders in patients with multiple sclerosis (MS) and stroke is often based on conventional treadmill training. Virtual reality (VR)-based treadmill training can increase motivation and improve therapy outcomes. The present study evaluated an immersive virtual reality application (using a head-mounted display, HMD) for gait rehabilitation with patients to (1) demonstrate its feasibility and acceptance and to (2) compare its short-term effects to a semi-immersive presentation (using a monitor) and a conventional treadmill training without VR to assess the usability of both systems and estimate the effects on walking speed and motivation. Methods: In a within-subjects study design, 36 healthy participants and 14 persons with MS or stroke participated in each of the three experimental conditions (VR via HMD, VR via monitor, treadmill training without VR). Results: For both groups, the walking speed in the HMD condition was higher than in treadmill training without VR and in the monitor condition. Healthy participants reported a higher motivation after the HMD condition as compared with the other conditions. Importantly, no side effects in the sense of simulator sickness occurred and usability ratings were high. No increases in heart rate were observed following the VR conditions. Presence ratings were higher for the HMD condition compared with the monitor condition for both user groups. Most of the healthy study participants (89\%) and patients (71\%) preferred the HMD-based training among the three conditions and most patients could imagine using it more frequently. Conclusions For the first time, the present study evaluated the usability of an immersive VR system for gait rehabilitation in a direct comparison with a semi-immersive system and a conventional training without VR with healthy participants and patients. The study demonstrated the feasibility of combining a treadmill training with immersive VR. Due to its high usability and low side effects, it might be particularly suited for patients to improve training motivation and training outcome e. g. the walking speed compared with treadmill training using no or only semi-immersive VR. Immersive VR systems still require specific technical setup procedures. This should be taken into account for specific clinical use-cases during a cost-benefit assessment.}, language = {en} } @article{LiesnerHinzKunde2021, author = {Liesner, Marvin and Hinz, Nina-Alisa and Kunde, Wilfried}, title = {How Action Shapes Body Ownership Momentarily and Throughout the Lifespan}, series = {Frontiers in Human Neuroscience}, volume = {15}, journal = {Frontiers in Human Neuroscience}, issn = {1662-5161}, doi = {10.3389/fnhum.2021.697810}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-241869}, year = {2021}, abstract = {Objects which a human agent controls by efferent activities (such as real or virtual tools) can be perceived by the agent as belonging to his or her body. This suggests that what an agent counts as "body" is plastic, depending on what she or he controls. Yet there are possible limitations for such momentary plasticity. One of these limitations is that sensations stemming from the body (e.g., proprioception) and sensations stemming from objects outside the body (e.g., vision) are not integrated if they do not sufficiently "match". What "matches" and what does not is conceivably determined by long-term experience with the perceptual changes that body movements typically produce. Children have accumulated less sensorimotor experience than adults have. Consequently, they express higher flexibility to integrate body-internal and body-external signals, independent of their "match" as suggested by rubber hand illusion studies. However, children's motor performance in tool use is more affected by mismatching body-internal and body-external action effects than that of adults, possibly because of less developed means to overcome such mismatches. We review research on perception-action interactions, multisensory integration, and developmental psychology to build bridges between these research fields. By doing so, we account for the flexibility of the sense of body ownership for actively controlled events and its development through ontogeny. This gives us the opportunity to validate the suggested mechanisms for generating ownership by investigating their effects in still developing and incomplete stages in children. We suggest testable predictions for future studies investigating both body ownership and motor skills throughout the lifespan.}, language = {en} } @article{PfisterKlaffehnKalckertetal.2021, author = {Pfister, Robert and Klaffehn, Annika L. and Kalckert, Andreas and Kunde, Winfried and Dignath, David}, title = {How to lose a hand: Sensory updating drives disembodiment}, series = {Psychonomic Bulletin \& Review}, volume = {28}, journal = {Psychonomic Bulletin \& Review}, issn = {1069-9384}, doi = {10.3758/s13423-020-01854-0}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-235195}, pages = {827-833}, year = {2021}, abstract = {Body representations are readily expanded based on sensorimotor experience. A dynamic view of body representations, however, holds that these representations cannot only be expanded but that they can also be narrowed down by disembodying elements of the body representation that are no longer warranted. Here we induced illusory ownership in terms of a moving rubber hand illusion and studied the maintenance of this illusion across different conditions. We observed ownership experience to decrease gradually unless participants continued to receive confirmatory multisensory input. Moreover, a single instance of multisensory mismatch - a hammer striking the rubber hand but not the real hand - triggered substantial and immediate disembodiment. Together, these findings support and extend previous theoretical efforts to model body representations through basic mechanisms of multisensory integration. They further support an updating model suggesting that embodied entities fade from the body representation if they are not refreshed continuously.}, language = {en} } @article{MuthWirthKunde2021, author = {Muth, Felicitas V. and Wirth, Robert and Kunde, Winfried}, title = {Temporal binding past the Libet clock: testing design factors for an auditory timer}, series = {Behavior Research Methods}, volume = {53}, journal = {Behavior Research Methods}, number = {3}, doi = {10.3758/s13428-020-01474-5}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-234922}, pages = {1322-1341}, year = {2021}, abstract = {Voluntary actions and causally linked sensory stimuli are perceived to be shifted towards each other in time. This so-called temporal binding is commonly assessed in paradigms using the Libet Clock. In such experiments, participants have to estimate the timing of actions performed or ensuing sensory stimuli (usually tones) by means of a rotating clock hand presented on a screen. The aforementioned task setup is however ill-suited for many conceivable setups, especially when they involve visual effects. To address this shortcoming, the line of research presented here establishes an alternative measure for temporal binding by using a sequence of timed sounds. This method uses an auditory timer, a sequence of letters presented during task execution, which serve as anchors for temporal judgments. In four experiments, we manipulated four design factors of this auditory timer, namely interval length, interval filling, sequence predictability, and sequence length, to determine the most effective and economic method for measuring temporal binding with an auditory timer.}, language = {en} } @article{KirschmannLenhardSuggate2021, author = {Kirschmann, Nicole and Lenhard, Wolfgang and Suggate, Sebastian}, title = {Influences from working memory, word and sentence reading on passage comprehension and teacher ratings}, series = {Journal of Research in Reading}, volume = {44}, journal = {Journal of Research in Reading}, number = {4}, doi = {10.1111/1467-9817.12373}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-258043}, pages = {817-836}, year = {2021}, abstract = {Reading fluency is a major determinant of reading comprehension but depends on moderating factors such as auditory working memory (AWM), word recognition and sentence reading skills. We investigated how word and sentence reading skills relate to reading comprehension differentially across the first 6 years of schooling and tested which reading variable best predicted teacher judgements. We conducted our research in a rather transparent language, namely, German, drawing on two different data sets. The first was derived from the normative sample of a reading comprehension test (ELFE-II), including 2056 first to sixth graders with readings tests at the word, sentence and text level. The second sample included 114 students from second to fourth grade. The latter completed a series of tests that measured word and sentence reading fluency, pseudoword reading, AWM, reading comprehension, self-concept and teacher ratings. We analysed the data via hierarchical regression analyses to predict reading comprehension and teacher judgements. The impact of reading fluency was strongest in second and third grade, afterwards superseded by sentence comprehension. AWM significantly contributed to reading comprehension independently of reading fluency, whereas basic decoding skills disappeared after considering fluency. Students' AWM and reading comprehension predicted teacher judgements on reading fluency. Reading comprehension judgements depended both on the students' self-concept and reading comprehension. Our results underline that the role of word reading accuracy for reading comprehension quickly diminishes during elementary school and that teachers base their assessments mainly on the current reading comprehension skill.}, language = {en} } @article{MunozCentifantiStickleThomasetal.2021, author = {Mu{\~n}oz Centifanti, Luna C. and Stickle, Timothy R. and Thomas, Jamila and Falc{\´o}n, Amanda and Thomson, Nicholas D. and Gamer, Matthias}, title = {Reflexive Gaze Shifts and Fear Recognition Deficits in Children with Callous-Unemotional Traits and Impulsivity/Conduct Problems}, series = {Brain Sciences}, volume = {11}, journal = {Brain Sciences}, number = {10}, issn = {2076-3425}, doi = {10.3390/brainsci11101342}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-248536}, year = {2021}, abstract = {The ability to efficiently recognize the emotions on others' faces is something that most of us take for granted. Children with callous-unemotional (CU) traits and impulsivity/conduct problems (ICP), such as attention-deficit hyperactivity disorder, have been previously described as being "fear blind". This is also associated with looking less at the eye regions of fearful faces, which are highly diagnostic. Previous attempts to intervene into emotion recognition strategies have not had lasting effects on participants' fear recognition abilities. Here we present both (a) additional evidence that there is a two-part causal chain, from personality traits to face recognition strategies using the eyes, then from strategies to rates of recognizing fear in others; and (b) a pilot intervention that had persistent effects for weeks after the end of instruction. Further, the intervention led to more change in those with the highest CU traits. This both clarifies the specific mechanisms linking personality to emotion recognition and shows that the process is fundamentally malleable. It is possible that such training could promote empathy and reduce the rates of antisocial behavior in specific populations in the future.}, language = {en} } @article{GromerKiserPauli2021, author = {Gromer, Daniel and Kiser, Dominik P. and Pauli, Paul}, title = {Thigmotaxis in a virtual human open field test}, series = {Scientific Reports}, volume = {11}, journal = {Scientific Reports}, doi = {10.1038/s41598-021-85678-5}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-259850}, pages = {6670}, year = {2021}, abstract = {Animal models are used to study neurobiological mechanisms in mental disorders. Although there has been significant progress in the understanding of neurobiological underpinnings of threat-related behaviors and anxiety, little progress was made with regard to new or improved treatments for mental disorders. A possible reason for this lack of success is the unknown predictive and cross-species translational validity of animal models used in preclinical studies. Re-translational approaches, therefore, seek to establish cross-species translational validity by identifying behavioral operations shared across species. To this end, we implemented a human open field test in virtual reality and measured behavioral indices derived from animal studies in three experiments (N=31, N=30, and N=80). In addition, we investigated the associations between anxious traits and such behaviors. Results indicated a strong similarity in behavior across species, i.e., participants in our study-like rodents in animal studies-preferred to stay in the outer region of the open field, as indexed by multiple behavioral parameters. However, correlational analyses did not clearly indicate that these behaviors were a function of anxious traits of participants. We conclude that the realized virtual open field test is able to elicit thigmotaxis and thus demonstrates cross-species validity of this aspect of the test. Modulatory effects of anxiety on human open field behavior should be examined further by incorporating possible threats in the virtual scenario and/or by examining participants with higher anxiety levels or anxiety disorder patients.}, language = {en} } @article{GrevingRichter2021, author = {Greving, Carla Elisabeth and Richter, Tobias}, title = {Beyond the Distributed Practice Effect: Is Distributed Learning Also Effective for Learning With Non-repeated Text Materials?}, series = {Frontiers in Psychology}, volume = {12}, journal = {Frontiers in Psychology}, issn = {1664-1078}, doi = {10.3389/fpsyg.2021.685245}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-247944}, year = {2021}, abstract = {Distributed learning is often recommended as a general learning strategy, but previous research has established its benefits mainly for learning with repeated materials. In two experiments, we investigated distributed learning with complementary text materials. 77 (Experiment 1) and 130 (Experiment 2) seventh graders read two texts, massed vs. distributed, by 1 week (Experiment 1) or 15 min (Experiment 2). Learning outcomes were measured immediately and 1 week later and metacognitive judgments of learning were assessed. In Experiment 1, distributed learning was perceived as more difficult than massed learning. In both experiments, massed learning led to better outcomes immediately after learning but learning outcomes were lower after 1 week. No such decrease occurred for distributed learning, yielding similar outcomes for massed and distributed learning after 1 week. In sum, no benefits of distributed learning vs. massed learning were found, but distributed learning might lower the decrease in learning outcomes over time.}, language = {en} } @article{SeegerLenhardWisniewski2021, author = {Seeger, Jennifer and Lenhard, Wolfgang and Wisniewski, Katrin}, title = {Metakognitives Strategiewissen in sprachbezogenen Situationen : Interne Struktur und Validit{\"a}t des ScenEx}, series = {Diagnostica}, volume = {67}, journal = {Diagnostica}, number = {4}, issn = {0012-1924}, doi = {10.1026/0012-1924/a000275}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-242375}, pages = {189-199}, year = {2021}, abstract = {Studieren stellt hohe Anforderungen an selbstregulatorische F{\"a}higkeiten und eigenverantwortlichen Umgang mit schwierigen Situationen. Aus den zus{\"a}tzlichen sprachlichen Barrieren f{\"u}r ausl{\"a}ndische Studierende erwachsen spezifische selbstregulatorische Aufgaben, wie der Umgang mit Verst{\"a}ndnisproblemen in Vorlesungen. Da hierf{\"u}r bisher kaum geeignete Erhebungsinstrumente existieren, versucht ScenEx diese L{\"u}cke zu schließen. Der Test erfasst das metakognitive Strategiewissen in sprachlich herausfordernden Situationen im Studienalltag. Anhand einer Stichprobe von 290 ausl{\"a}ndischen Studierenden im ersten Fachsemester wird die psychometrische Qualit{\"a}t und interne Struktur des Instruments {\"u}berpr{\"u}ft. ScenEx zeigt eine zufriedenstellende interne Konsistenz und gute Itemfit-Kennwerte, erwartungskonform liegen lokale stochastische Abh{\"a}ngigkeiten der Aufgaben innerhalb der Szenarien vor. Eine konfirmatorische Faktorenanalyse best{\"a}tigt die Grobstruktur der Szenarien und des Gesamtscores des Tests. Das Verfahren ist f{\"u}r die weitere Entwicklung der Sprachkompetenz {\"u}ber die anf{\"a}ngliche Sprachf{\"a}higkeit hinaus pr{\"a}diktiv. ScenEx erweist sich insgesamt als ein reliables und valides Instrument zur Erfassung des Strategiewissens in schwierigen Situationen im Studium.}, language = {de} } @article{CaoSteinbornHaendel2021, author = {Cao, Liyu and Steinborn, Michael B. and Haendel, Barbara F.}, title = {Delusional thinking and action binding in healthy individuals}, series = {Scientific Reports}, volume = {11}, journal = {Scientific Reports}, number = {1}, doi = {10.1038/s41598-021-97977-y}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-264707}, year = {2021}, abstract = {Action binding is the effect that the perceived time of an action is shifted towards the action related feedback. A much larger action binding effect in schizophrenia compared to normal controls has been shown, which might be due to positive symptoms like delusions. Here we investigated the relationship between delusional thinking and action binding in healthy individuals, predicting a positive correlation between them. The action binding effect was evaluated by comparing the perceived time of a keypress between an operant (keypress triggering a sound) and a baseline condition (keypress alone), with a novel testing method that massively improved the precision of the subjective timing measurement. A positive correlation was found between the tendency of delusional thinking (measured by the 21-item Peters et al. delusions inventory) and action binding across participants after controlling for the effect of testing order between operant and baseline conditions. The results indicate that delusional thinking in particular influences action time perception and support the notion of a continuous distribution of schizotypal traits with normal controls at one end and clinical patients at the other end.}, language = {en} }