Modeling Mental Spatial Reasoning About Cardinal Directions

This article presents research into human mental spatial reasoning with orientation knowledge. In particular, we look at reasoning problems about cardinal directions that possess multiple valid solutions (i.e., are spatially underdetermined), at human preferences for some of these solutions, and at representational and procedural factors that lead to such preferences. The article presents, first, a discussion of existing, related conceptual and computational approaches; second, results of empirical research into the solution preferences that human reasoners actually have; and, third, a novel computational model that relies on a parsimonious and flexible spatio‐analogical knowledge representation structure to robustly reproduce the behavior observed with human reasoners.     

Avoiding Bias in Publication Bias Research: The Value of “Null” Findings

Meta-analytic reviews are an important tool for advancing science and guiding evidence-based practice. Publication bias is one of the greatest threats to meta-analytic reviews. This paper assesses the degree of publication bias in four previously published meta-analytic datasets from various fields of study in the organizational sciences. Of these datasets, one appears to be relatively unaffected by publication bias while the others seem to be noticeably influenced by this bias. Our “null” result (i.e., a prior meta-analytic estimate is unlikely to have been affected by publication bias) increases our confidence in the accuracy of our cumulative knowledge. Yet, our other findings suggest the presence of publication bias and point to the need for caution and further research.     

Werden Psychotherapeuten,Psychiater oder die Psychotherapie stigmatisiert?

Background

In the last decades much has been found out about the stigmatization of persons with mental illnesses. Recently, a potential stigmatization of psychologists, psychiatrists and psychotherapy has been debated.

Aim

The question should be answered whether there is any scientific evidence for stigmatization of psychologists, psychiatrists and psychotherapy by using the conceptualization of stigma as brought forward by Link and Phelan (Ann Rev Sociol 2001; 27:363–385).

Material and methods

For the systematic literature search in 2013 a databank search was carried out in Web of Science using the search terms stigma or discrimination or stereotypes or prejudice AND psychiatrist or psychotherapist or psychotherapy or mental health professional. A total of 2013 publications were identified which were systematically arranged according to the title and abstract with respect to the relevance for the question whether psychotherapy or associated professional groups are stigmatized. Only four of the articles were considered to be relevant. After advice from experts six further relevant articles could be found which did not appear in the databank search.

Results

The review found evidence for both positive and negative stereotypes but not for other components of the stigmatization process.

Conclusion

At present there is no evidence for a stigma related to psychotherapy or to the professions of psychotherapists and psychiatrists.     

What about the “ups and downs” in our daily life? The influence of affective instability on mental health

Although affective instability is considered to be a crucial factor for mental disorders, research on affective instability and mental health is still rare. The aim of the present study was to investigate affective instability and mental health operationalized by the degree of psychological distress and life satisfaction. Using ecological momentary assessment, we investigated affective intensity and instability in a general population sample (n = 218). Psychological distress and life satisfaction were examined cross-sectionally and longitudinally. In general, we found that positive affect was more variable than negative affect. When we accounted for the overlap between variables, our findings demonstrated that besides the effects of intensity in negative affect and positive affect, higher positive affective instability was related to better concurrent mental health. Longitudinally, negative affective intensity was a decisive factor in the development of mental health. In sum, our findings revealed that affective instability was not dysfunctional per se. In fact, instability in positive affect seems to be important to achieve mental health.     

The power of a smile: Stronger working memory effects for happy faces in adolescents compared to adults

Theories of adolescent behaviour attribute increases in risk-taking and sensation-seeking in this age group to a heightened sensitivity to emotional stimuli on the one hand and a relatively immature cognitive control system on the other hand. However, little research has outlined to what extent relevant and irrelevant emotional stimuli bias the imbalance between affective processing and cognitive control. Thirty-three adolescents (19 females, aged 12–14) and 37 adults (18 females, aged 18–29) completed two attentional conditions of an emotional face working memory (WM) 0-back/2-back task. Participants were asked to attend to the emotional facial expression in the “relevant” emotion condition, and to the gender of the face in the “irrelevant” condition. The results revealed a WM improvement for happy faces in the relevant condition in both age groups, and an impairment for irrelevant happy faces in adolescents, but not adults. Furthermore, the difference between both attentional conditions for happy faces was larger in adolescents than adults. Results are discussed within the framework of theories of adolescent behaviour.     

Social Value Orientation,Expectations, and Cooperation in Social Dilemmas: A Meta‐analysis

Interdependent situations are pervasive in human life. In these situations, it is essential to form expectations about the others' behaviour to adapt one's own behaviour to increase mutual outcomes and avoid exploitation. Social value orientation, which describes the dispositional weights individuals attach to their own and to another person's outcome, predicts these expectations of cooperation in social dilemmas—an interdependent situation involving a conflict of interests. Yet, scientific evidence is inconclusive about the exact differences in expectations between prosocials, individualists, and competitors. The present meta‐analytic results show that, relative to proselfs (individualists and competitors), prosocials expect more cooperation from others in social dilemmas, whereas individualists and competitors do not significantly differ in their expectations. The importance of these expectations in the decision process is further highlighted by the finding that they partially mediate the well‐established relation between social value orientation and cooperative behaviour in social dilemmas. In fact, even proselfs are more likely to cooperate when they expect their partner to cooperate. Copyright © 2018 European Association of Personality Psychology     

Efficiency and defense motivated ingroup projection: Sources of protoypicality in intergroup relations

Members of higher status groups generalize characteristics of their ingroup to superordinate categories that serve as a frame of reference for comparisons with outgroups (ingroup projection). We propose that the causal process depends on the security of the intergroup context: When intergroup relations are secure, projection derives from a motivation to represent the superordinate category efficiently; when they are insecure, projection is a defense motivated process. Accordingly, we hypothesized that inducing participants to use heuristic vs. systematic information processing (via time pressure, cognitive load, or thoughtfulness instructions) would have differential effects on ingroup projection in secure as compared to insecure intergroup relations. Three experiments manipulated security of the intergroup context and information processing mode in artificial (Studies 1 and 2) or natural (Study 3) groups. We found that time pressure increased ingroup projection in the secure-group condition but decreased it in the insecure-group condition (Study 1), cognitive load increased projection in the secure but not in the insecure condition (Study 2) and thoughtfulness instructions increased projection for high identifiers in the insecure but not in the secure condition (Study 3). Results support the hypothesis that ingroup projection occurs as a cognitive bias in secure intergroup relations but that it is socially motivated by the specific intergroup relation when this relation is insecure.     

A key role for experimental task performance: effects of math talent, gender and performance on the neural correlates of mental rotation

The neurophysiological mechanisms underlying superior cognitive performance are a research area of high interest. The majority of studies on the brain-performance relationship assessed the effects of capability-related group factors (e.g. talent, gender) on task-related brain activations while only few studies examined the effect of the inherent experimental task performance factor. In this functional MRI study, we combined both approaches and simultaneously assessed the effects of three relatively independent factors on the neurofunctional correlates of mental rotation in same-aged adolescents: math talent (gifted/controls: 17/17), gender (male/female: 16/18) and experimental task performance (median split on accuracy; high/low: 17/17). Better experimental task performance of mathematically gifted vs. control subjects and male vs. female subjects validated the selected paradigm. Activation of the inferior parietal lobule (IPL) was identified as a common effect of mathematical giftedness, gender and experimental task performance. However, multiple linear regression analyses (stepwise) indicated experimental task performance as the only predictor of parietal activations. In conclusion, increased activation of the IPL represents a positive neural correlate of mental rotation performance, irrespective of but consistent with the obtained neurocognitive and behavioral effects of math talent and gender. As experimental performance may strongly affect task-related activations this factor needs to be considered in capability-related group comparison studies on the brain-performance relationship.