@article{Krueger1989, author = {Kr{\"u}ger, Hans-Peter}, title = {Speech chronemics - a hidden dimension of speech. Theoretical background, measurement, and clinical validity}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41037}, year = {1989}, abstract = {Der Begriff "speech chronemics" wird eingef{\"u}hrt, um eine Forschungsrichtung zu charakterisieren, die aus den physikalischen Qualit{\"a}ten des Sprachsignals lediglich das Muster von "an" ("Sprechen") und "aus" ("Pausieren") herauszieht. Die Forschungen zu diesen on-off Mustern lassen sich in die methodischen Dimensionen "zeitliche Einheit", "Zahl der Sprecher" und "Art der prosodischen Maße" gliedern. Es wird gezeigt, daß die Entscheidung eines Untersuchers f{\"u}r eine bestimmte Methodik das Ergebnis seiner Untersuchung nicht unerheblich vorausbestimmt. Es wird dann mit dem Logoport ein neues tragbares Meßinstrument vorgestellt, das es erlaubt, das Sprechverhalten von Probanden bis zu 24 Stunden lang in deren normaler Umgebung aufzuzeichnen. Es werden zwei Experimente beschrieben. Im ersten wird gezeigt, daß die Messung von Artiku1ationspausen valide den psychophysiologischen Aktivierungsstatus abbilden kann. In der zweiten Studie wird die soziotrope Wirksamkeit einer neuen betablockierenden Substanz aufgezeigt: in einer Langzeitstudie verbesserte sich das Interaktionsverhalten von Probanden, die sich sozial schwer tun, im Vergleich zu Plazebo und zum Verhalten von Personen ohne solche Schwierigkeiten. Schließlich wird mit Blick auf neue Studien die Wichtigkeit einer {\"u}berlegten theoretischen Einbettung und einer Standardisierung von situativen und methodischen Merkmalen betont.}, language = {en} } @article{KohnenKrueger1982, author = {Kohnen, Ralf and Kr{\"u}ger, Hans-Peter}, title = {Tranquillizer effects in an experimental analog of verbal examinations}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-41617}, year = {1982}, abstract = {In an experimental analog of verbal examinations, the call-up situation, the effects of two dosages of a tranquillizing agent (lopirazepam) are compared to placebo treatment. 72 male and female, healthy, young volunteers have been randomly assigned to 12 groups of 6 subjects each. Pulse frequency and performance were registered. The results indicated differential drug effects which were interpreted according to the hypotheses of "differential effects of social stressors". If a situation was highly challenging for a subject, the application of a tranquillizer in an adequately high dosage enabled him to perform well in spite of or because of strong increases in pulse frequency.}, language = {en} } @article{KruegerStuckenbergVollrath1988, author = {Kr{\"u}ger, Hans-Peter and Stuckenberg, Annette and Vollrath, Mark}, title = {Stability and Variability in Interactive Behavior as Measured by Methods of "Speech Chronemics"}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-40908}, year = {1988}, abstract = {Dyadic interaction is modelled os an adaptive process between personality of the partners involved and the characteristics of the theme. The theme structure and the principles which control the adaptation process are referred to as "syntality". The material of the studies reported are the speech signals of the verbal interaction reduced to an on-off pattern. In a first study individual speech behavior was found to remain stable in dyads even if partners changed. The second study showed the stability of the speech patterns for different interaction themes even if dyads changed. These apparently contradictory results are reconciled by introducing the concept of "adaptive stability". Individual speech behavior does not happen at a stable activity level, but is characterized by a constant relationship (" less" or "more") to the respective activity of the other partner.}, language = {en} } @article{ArbuznikovPlakhutin1993, author = {Arbuznikov, Alexey V. and Plakhutin, A. B.}, title = {Symmetric vector coupling coefficients for atomic non-Roothaan states in the d\(^N\) configuration}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47062}, year = {1993}, abstract = {No abstract available}, language = {en} } @article{ArbuznikovPlakhutin1992, author = {Arbuznikov, Alexey V. and Plakhutin, B. N.}, title = {Exact expression for the Fock operator in the unified coupling operator method}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-47053}, year = {1992}, abstract = {No abstract available}, language = {en} } @article{RostasBlassmann2009, author = {Rost{\´a}s, Michael and Blassmann, Katrin}, title = {Insects had it first: surfactants as a defence against predators}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-35031}, year = {2009}, abstract = {Insects have evolved an astonishing array of defences to ward off enemies. Well-known and widespread is the regurgitation of oral secretions (OS), fluids that repel attacking predators. In herbivores, the effectiveness of OS has been ascribed so far to the presence of deterrent secondary metabolites sequestered from the host plant. This notion implies, however, that generalists experience less protection on plants with low amounts of secondary metabolites or with compounds ineffective against potential enemies. Resolving the dilemma, we describe a novel defence mechanism that is independent of deterrents as it relies on the OS' intrinsic detergent properties. The OS of Spodoptera exigua (and other species) was found to be highly amphiphilic and well capable of wetting the hydrophobic cuticle of predatory ants. As a result, affected ants stopped attacking and engaged in extensive cleansing. The presence of surfactants was sufficient to explain the defensive character of herbivore OS. We hypothesize that detergency is a common but unrecognised mode of defence which provides a base level of protection that may or may not be further enhanced by plant-derived deterrents. Our study also proves that insects 'invented' the use of defensive surfactants long before modern agriculture had started applying them as insecticides.}, subject = {Pflanzenfressende Insekten}, language = {en} } @article{EllgringSeilerPerlethetal.1990, author = {Ellgring, Johann Heinrich and Seiler, S. and Perleth, B. and Gasser, T. and Oertel, W.}, title = {An integrated approach for the neurological and psychological support of Parkinson patients}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42456}, year = {1990}, abstract = {Introduction Although symptomatic therapy is available for Parkinson's disease, patients and relatives are faced with continuous severe psychological problems. These psychological problems include: 1. lack of emotional expression, 2. bradephrenia, 3. depression, 4. lack of motivation,S. social anxiety, 6. stress induced increase of symptoms. The first four of these may be at least in part due to the dopamine deficiency. However, even as part of the primary symptoms they have social and communicative impact for patients and relatives. Social anxiety and stress induced increase of symptoms on the other hand clearly result from an interaction of somatic and psychological factors. Social anxiety mainly develops in Parkinson I s disease as an indirect consequence of the motor symptoms. Patients are afraid of being negatively evaluated in the public, of receiving negative comments etc. Thus r social withdrawal increases and the improvement of neurological symptoms following drug treatment may not be fully exploited on the psychosocial level. Stress induced increase of motor symptoms is a commonly observed phenomenon in Parkinson's disease. Even minor stressors, mainly social in nature, can have extreme effects and may elicit or increase tremor or rigidity. A patient can be well in one moment, but unable to move in the next when being aware that he has to leave the house in an hour. Given this situation, patients and relatives have to develop strategies fo~ an emotional balance in the presence of a continuous confrontation with the direct and indirect consequences of the disease. A precondition for developing new psychologically based strategies is an optimwn medical treatment. The integrated approach for neurological and psychological support has the following goals: 1. improving medical treatment for the individual patient, 2. improving psychological coping and psychosocial adaptation for patients and relatives, and 3. evaluating and improving medical and psychological therapy. CONCLUSION Psychological intervention can provide considerable help for a substantial part of Parkinson patients. The main target is coping with stressful social situations. Relaxation and cognitive restructuring together with situational behavioral analysis and training of social skills specifically adapted to the disease are" the main strategies. Various problems remain open at the moment, like the maintenance of motivation which is especially critical for Parkinson patients. Parkins on 's disease is a neurological disease with a known pathological substrate and a therapy which is effective at least for several years on a symptomatic level. The symptoms are tightly connected with psychological emotional and cognitive processes. Moreover, patients and relatives have to cope with symptoms which strongly influence social interaction. And they have to cope together with this situation over a period of ten or twenty years. Thus not only for the patient but also for the health of the relatives, psychological aid is urgently needed. We suggest to integrate psychological approach into the neurological diagnosis and treatment.}, language = {en} } @article{EllgringClarke1977, author = {Ellgring, Johann Heinrich and Clarke, Andrew H.}, title = {A video protocolling and retrieval system for the analysis of behaviour}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42537}, year = {1977}, abstract = {A video protocolling and retrieval system for the analysis of behaviour. Rec~nt developments in the data processing and video technologies have enabled the desIgn of automatic systems for the handling of video software. The system for the protocoIling and retrieval of audiovisual data (PRA VDA) described here has been developed for applications in behavioural observation and analysis. The facilities available, including time coding, search routines and automatic editing are explained and the advantages of computer aided operation are dealt with. Current applications of the system are briefly discussed.}, language = {en} } @article{EllgringOertelUlmetal.1992, author = {Ellgring, Johann Heinrich and Oertel, W. H. and Ulm, G. and Gasser, T. and Perleth, B. and Seiler, S.}, title = {Partnership and depression in Parkinson's Disease}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42516}, year = {1992}, abstract = {In this study, the influence of partnership on depression and coping with Parkinson's disease has been investigated. Twentythree single female patients, 46 married patients (23 female, 23 male) with unimpaired partnership and 42 patients (21 female, 21 male) whose partnership had worsened since the onset of disease, were compared with regard to depression and self reported extent of psychosocial distress. Single female patients tended to have higher depression scores than patients in a stable partnership, especially in items concerning personal worthlessness and senselessness of life. Patients differed in the extent of distress concerning social behavior, psychological problems/anxiety and efficiency. Within the group of single female patients two subgroups emerged: (1) patients with low extent of distress in all aspects; (2) patients who were highly distressed by psychological problems and physical disability but weakly distressed from social interaction. Male and female patients living in a stable partnership reported only a generally low to moderate extent of distress. More than half of the male and female patients who reported an impairment of their relationship also had scores of moderate to severe depression. These patients also had the h~ghest extent of distress in each ofthe aspects assessed. The results are dicussed with regard to possible interactive effects ofthe disease, quality of the partnership and availability of coping strategies.}, language = {en} } @article{EllgringClarke1977, author = {Ellgring, Johann Heinrich and Clarke, A. H.}, title = {Event triggered observation as a method for the study of gestural behaviour}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-42491}, year = {1977}, abstract = {No abstract available}, language = {en} }