Deficits in acquisition and extinction of conditioned responses in mGluR7 knockout mice

Metabotropic glutamate receptor 7 (mGluR7) is expressed in brain regions implicated in emotional learning and working memory, and previous behavioral experiments indicated contributions of mGluR7 to various complex behaviors. In the present study, we investigated the specific effects of mGluR7 deletion on a variety of conditioning paradigms that model crucial neurocognitive and psychopathological behavioral phenomena. Null-mutant mGluR7^−/− mice displayed defects during scheduled appetitive conditioning, acquisition and extinction of appetitive odor conditioning, extinction of response suppression-based conditioned emotional responding (CER), acquisition of discriminative CER, and contextual fear conditioning. mGluR7^−/− animals were slower to acquire the association between a conditioned stimulus and a positive or negative reinforcer, but eventually reached similar performance levels to their wildtype littermates. Notably, extinction learning of conditioned responses was slower in mGluR7^−/− compared to wildtype animals. The observed delays in the acquisition of complicated stimulus associations across conditioning procedures may suggest a critical role for mGluR7 in neurocognitive functions and psychopathology.     

Creative ways to well-being: Reappraisal inventiveness in the context of anger-evoking situations

Neuroscientific studies in the field of creativity mainly focused on tasks drawing on basic verbal divergent thinking demands. This study took a step further by investigating brain mechanisms in response to other types of creative behavior, involving more “real-life” creativity demands in the context of emotion regulation and well-being. Specifically, functional patterns of EEG alpha activity were investigated while participants were required to generate as many and as different ways as possible to reappraise presented anger-eliciting situations in a manner that reduces their anger. Cognitive reappraisal involves some of the same cognitive processes as in conventional verbal creativity tasks, inasmuch as it requires an individual to inhibit or disengage from an emotional event, to shift attention between different perspectives, and to flexibly adopt new solutions. To examine whether alpha oscillations during cognitive reappraisal are different from those during conventional creative ideation, the EEG was also assessed during performance of the Alternative Uses task, requiring individuals to generate as many and as original uses of an object as possible. While cognitive reappraisal was associated with a similar pattern of alpha power as observed in conventional verbal creative ideation, the former yielded significantly stronger alpha power increases at prefrontal sites, along with lower alpha increases at more posterior cortical sites, indicating higher cognitive control and less spontaneous imaginative thought processes in the generation of effective strategies to regulate an ongoing negative emotional state.     

The spirited, the observant, and the disheartened: social concepts of optimism, realism, and pessimism

The social concepts of optimism, pessimism, and realism were investigated by assessing the prototypical acts (thoughts, feelings, goals, and actions) that laypersons assign to optimists, pessimists, and realists responding to a controllable and an uncontrollable situation. Optimists and realists, but not pessimists, were seen as adjusting their behavior to the situation. However, whereas optimists were characterized by flexibility in thoughts and feelings but invariance in goals and actions (i.e., they pursued their goals in both controllable and uncontrollable situations), the act profiles assigned to realists varied on all of these dimensions. The profile assigned to pessimists was characterized by cognitive, affective, motivational, and behavioral invariance, encompassing negative construals of the situation, giving up, and a focus on distress.     

Harm that does not hurt: Humour in coping with self-threat

We examined the affective and cognitive impact of humour on coping with self-threat. Research was based on an incongruity concept of humour that specifies humour as a state resulting from appraising an aversive incident as both harmful and as acceptable. An appraisal related procedural priming paradigm was used to induce humour. In Study 1 (N = 41 female students) the impact of humour on positive and negative affect following self-threat was examined. In Study 2 (N = 52 students; 94% women) we investigated the consequences of humour for a self-serving interpretation of failure, the awareness of harm, and subsequent performance. Relative to the control condition, humour increased positive affect, while not exclusively affecting negative affect, and increased the tendency for an external attribution of failure, while harm was clearly recognized. However, humour led to poorer subsequent performance, suggesting that humour may also have its costs.     

Die Abstinenzregel und die Wirklichkeit

Ohne Zusammenfassung     

Sex differences in anger-related behaviour: Comparing expectancies to actual behaviour

Expectancies about and the reactions of men and women to a provocation were compared to self- and observer ratings of the actual behaviour in response to the provocation. In Study 1, men and women were provoked by the experimenter during a laboratory task. In Study 2, participants were presented with video clips of the provocation and estimated how a man or a woman would likely react to it. The man was expected to react more aggressively than the woman. In their actual behaviour, however, men were more likely to react with humour or by distancing than were women. The woman was expected to react more submissively than the man, which was inaccurate with respect to both the observer ratings and the self-ratings.     

Person-centred coping research

In this concluding article we discuss the three approaches to biographical stress and coping research presented in this issue, under four main headings. The first topic comprises the comparison of the three approaches with regard to their biographical features. In a second part we turn to the issue of coping and examine differences as well as similarities between the coping concept of Hans Thomae, on the one hand and that of Lazarus and Folkman on the other hand. The third and fourth of our discussion points deal with two central topics, that are accentuated in present personality psychology: the person-situation issue and the idiographic-nomothetic debate. With regard to both topics, we discuss the ideas and research findings which Lazarus and Folkman, as well as Thomae are contributing to these issues. We conclude our discussion of biographical approaches to stress and coping by proposing a person-centred approach, that can be regarded as a further development of theoretical conceptualizations contained in the approaches of Lazarus and Thomae.     

The speech naturalness of people who stutter speaking under delayed auditory feedback as perceived by different groups of listeners

This study investigated listeners' perception of the speech naturalness of people who stutter (PWS) speaking under delayed auditory feedback (DAF) with particular attention for possible listener differences. Three panels of judges consisting of 14 stuttering individuals, 14 speech language pathologists, and 14 naive listeners rated the naturalness of speech samples of stuttering and non-stuttering individuals using a 9-point interval scale. Results clearly indicate that these three groups evaluate naturalness differently. Naive listeners appear to be more severe in their judgements than speech language pathologists and stuttering listeners, and speech language pathologists are apparently more severe than PWS. The three listener groups showed similar trends with respect to the relationship between speech naturalness and speech rate. Results of all three indicated that for PWS, the slower a speaker's rate was, the less natural speech was judged to sound. The three listener groups also showed similar trends with regard to naturalness of the stuttering versus the non-stuttering individuals. All three panels considered the speech of the non-stuttering participants more natural. EDUCATIONAL OBJECTIVES: The reader will be able to: (1) discuss the speech naturalness of people who stutter speaking under delayed auditory feedback, (2) discuss listener differences about the naturalness of people who stutter speaking under delayed auditory feedback, and (3) discuss the importance of speech rate for the naturalness of speech.