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Facial expressions have been studied mainly in chimpanzees and have been shown to be important social signals. In platyrrhine and strepsirrhine primates, it has been doubted that facial expressions are differentiated enough, or the species socially capable enough, for facial expressions to be part of their communication system. However, in a series of experiments presenting olfactory, auditory and visual stimuli, we found that common marmosets (Callithrix jacchus) displayed an unexpected variety of facial expressions. Especially, olfactory and auditory stimuli elicited obvious facial displays (such as disgust), some of which are reported here for the first time. We asked whether specific facial responses to food and predator-related stimuli might act as social signals to conspecifics. We recorded two contrasting facial expressions (fear and pleasure) as separate sets of video clips and then presented these to cage mates of those marmosets shown in the images, while tempting the subject with food. Results show that the expression of a fearful face on screen significantly reduced time spent near the food bowl compared to the duration when a face showing pleasure was screened. This responsiveness to a cage mate’s facial expressions suggests that the evolution of facial signals may have occurred much earlier in primate evolution than had been thought.  相似文献   
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Studies investigating changes in functional cerebral asymmetries (FCAs) with hormonal fluctuations during the menstrual cycle in young women have led to controversial hypotheses about an influence of estrogen (E) and/or progesterone (P) on FCAs. Based on methodical, but also on principal problems in deriving conclusions about hormone effects from correlational designs, the present study investigated hemispheric asymmetries in postmenopausal women, who received hormone replacement either with E alone (E group, n = 32), an E–P combination (E–P group, n = 29) or no hormone substitution (control group, n = 31). Speed and accuracy of responses to a word- and a face decision task, both presented laterally by means of the visual half field technique, were assessed. The control group showed the typical pattern of hemispheric asymmetry with more correct responses to verbal stimuli presented in the right visual field (RVF) and to face stimuli presented in the left visual field (LVF). A hormone-effect was demonstrable only for the verbal task, in which the E group showed an enhanced performance of the right hemisphere (LVF). The E–P group showed no significant differences to the control group or the E group. The results suggest a role of E in the modulation of FCAs at least with regard to verbal processing.  相似文献   
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The effects of inducible heat shock protein 70 (HSP70) on emotional and learning behaviour as well as hippocampal long-term potentiation was investigated in transgenic HSP70 overexpressing mice. In active two-way avoidance learning (shuttle box) as well as spatial 8-arm radial maze learning, the HSP70 overexpressing mice showed diminished learning performance. In several tests there was no indication of differences in anxiety behaviour between transgenic mice and wild-type mice. This suggests that impairment in learning behaviour is unrelated to the learning task and motivational aspects of behaviour. To investigate the neurophysiological correlate of learning, long-term potentiation experiments were performed. In transversal hippocampal slices, an enhanced amplitude of the population spike was found in HSP70 overexpressing mice. It was hypothesised that enhanced potentiation in conjunction with potentiation effects due to learning led to learning impairment.  相似文献   
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Gisela Loeck 《Erkenntnis》1987,26(2):195-229
This article demonstrates that theory-laden perception is a pure fiction of some philosophers of science and does not in fact exist. It shows by examples from L. Fleck that non-neutral or person-bound observation is an important source of scientific knowledge and suggests that we can explain those changes in scientific knowledge that are caused by divergent perceptions of different observers by means of differences in the repertoires of visual concepts of the respective observers. Visual concept is introduced by means of a performance model of perception. It is contrasted with definable or language-generated concept and compared to Wittgenstein's family resemblance of concepts.

Dieser Aufsatz geht zurück auf einen Vortrag im Kolloquium Beobachtung und Erfahrung an der TU Berlin im Februar 1984 unter Leitung von Herrn Prof. Dr. Hans Poser. Ich danke den Teilhehmern des Kolloquiums für Diskussion und Kritik sowie Herrn Prof. Dr. W. Lenzen und Herrn Prof. Dr. C.-U. Moulines.  相似文献   
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Primary objective: This is the first qualitative study that elicited the perceptions of both psychological therapists and their clients in the use of Clinical Outcomes in Routine Evaluation with computer software (CORE‐Net), where instant visual feedback for session tracking was given on a computer screen in the therapy room at each therapy session. The study also examined how therapists viewed its potential value in supervision and provides suggestions for improving training. Research design: The study adopted a convenience sample of four therapists in a primary care counselling setting (PCC – General Practitioner referrals) who were experienced in using CORE‐Net, and five therapists in an NHS employee/occupational support counselling service (OH) who had just begun to use CORE‐Net for session tracking with 10 of their clients. Method: A qualitative methodology was used and interview data were collected from the therapists via focus groups; the clients were interviewed individually face to face. All data was analysed inductively. Findings: The study identified six overarching themes: (i) therapists were initially anxious and resistant; (ii) therapists adapt ‘creatively’; (iii) outcome measures help the client/therapist relationship; (iv) clients perceive visual measures as helpful; (v) CORE scores inform supervision; and (vi) proper and ongoing training/support of therapists is necessary. The main limitations are comparability of data and the generalisabilty of results. Conclusions: The implementation of routine outcome measurement (ROM) is a challenge but can be made easier with proper training and supervision. Clients appear happier than their therapists when routine outcome measurement is used.  相似文献   
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Journal of Child and Family Studies - Children’s behavior regulation development takes place in diverse sociocultural settings. In this study, we take a multilayer ecological perspective and...  相似文献   
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