Intellectual ability in young men separated temporarily from their parents in childhood

We examined the effects of early life stress (ELS) on intellectual ability in 2,725 20-year-old male participants, of whom 321 were separated temporarily (mean 1.7 years) from both their parents during World War II, at an average age of 4.3 years. Intellectual ability was tested when entering compulsory military service. The separated men had − 0.28 (95% CI − 0.39, − 0.16), − 0.13 (95% CI − 0.25, − 0.01), − 0.18 (95% CI − 0.29, − 0.06), and − 0.19 (95% CI − 0.30, − 0.07) SD units lower verbal, visuospatial, arithmetic, and composite score of intellectual ability, respectively, compared to non-separated. Participants who were separated for more than a year and between two and four years had the lowest ability scores. ELS showed most consistent associations with verbal ability, but were not limited to it. Children beyond infancy and before their school-age may be the most vulnerable to the adverse effects of the ELS.     

Experience matters: 11-month-old infants can learn to use material information to predict the weight of novel objects

In contrast to previous findings, this study demonstrates that 11-month-old infants are able to learn the relationship between object material and object weight when exploring different objects that provided a systematic covariation of both object features. This guides their action in a subsequent preferential-reaching task.     

Ambivalenz in der psychiatrischen Organisation

For the past 100 years Bleuler??s ambivalence terminology has been applied to many aspects of the psychiatric treatment of patients, particularly in the realm of diagnostics and therapy. It has, however, been adopted in an approach mainly limited to psychopathological phenomena. This article discusses whether advanced concepts of ambivalence can facilitate the analysis of current challenges and problems of institutional psychiatry, placing them in a new light. It describes a wide range of psychiatry-specific ambivalence experiences by investigating the field of activity of individual therapists as well as of interdisciplinary therapeutic teams. Particular attention is given to an ambivalence-oriented perspective of clinic management taking uncertainty and complexity into consideration. In such different contexts modern ambivalence concepts give way to a psychodynamic understanding of clinical areas of conflict, thus extending the possibilities of multimodal therapy. When dealing with complex leadership and planning tasks, sensibility and tolerance towards ambivalence phenomena and conflicts prove to be unusual but valuable problem solving resources.     

Me, myself, and I: different recognition rates for three photo-IDs of the same person

In all contemporary societies, photo-identity documents are used routinely for person identification, but this process is surprisingly fallible. Here we show that this problem is not limited to the identification of specific photographs of a person, but transcends three identity cards of the same person with different images. These identity cards varied substantially from each other in how well they could be recognised but identification rates were generally poor. We also present a potential solution to this problem by demonstrating that person identification can be improved when several photographs of the same person are made available.     

Location in negotiation: Is there a home field advantage?

Although location is considered to play an important role in negotiation potentially favoring one side over the other, little research has examined whether negotiating on one’s home field indeed confers an advantage to the resident party. We tested this possibility by experimentally manipulating participants’ occupancy status (resident versus neutral versus visitor). Across three studies, we find that residents of an office space outperform the visiting party in a distributive negotiation. In addition, our results suggest that this performance discrepancy between residents and visitors may be due to both a resident advantage (residents outperforming a neutral party) and a visitor disadvantage (visitors performing worse than a neutral party). Finally, our findings reveal that confidence partially mediates the effects of occupancy status on negotiation performance and demonstrate that an intervention designed to boost visitor confidence can help overcome the home field advantage. Implications of these results for theory and practice are discussed.     

Reproductive behavior and personality traits of the Five Factor Model

We examined associations between Five Factor Model personality traits and various outcomes of reproductive behavior in a sample of 15 729 women and men from the Wisconsin Longitudinal Study (WLS) and Midlife Development in the United States (MIDUS) survey. Personality and reproductive history was self‐reported in adulthood (mean age: 53 years). High extraversion, high openness to experience, and low neuroticism were associated with larger number of children in both sexes, while high agreeableness and low conscientiousness correlated with larger offspring number in women only. These associations were independent of marital status. There were also more specific associations between personality and timing of childbearing. The findings demonstrate that personality traits of the Five Factor Model are systematically associated with multiple reproductive outcomes. Copyright © 2011 John Wiley & Sons, Ltd.     

The unanticipated interpersonal and societal consequences of choice: victim blaming and reduced support for the public good

Choice makes North Americans feel more in control, free, and independent, and thus has many positive consequences for individuals' motivation and well-being. We report five studies that uncovered novel consequences of choice for public policy and interpersonal judgments. Studies 1 through 3 found that activating the concept of choice decreases support for policies promoting intergroup equality (e.g., affirmative action) and societal benefits (e.g., reducing environmental pollution), but increases support for policies promoting individual rights (e.g., legalizing drugs). Studies 4 and 5 found that activating the concept of choice increases victim blaming and decreases empathy for disadvantaged people. Study 5 found that choice does not decrease Indians' empathy for disadvantaged individuals, indicating that the social and interpersonal consequences of choice are likely culture-specific. This research suggests that the well-known positive effects of choice for individuals can be accompanied by an array of previously unexamined and potentially negative outcomes for other people and for society.     

Predicting Training Success with General Mental Ability,Specific Ability Tests,and (Un)Structured Interviews: A meta‐analysis with unique samples

Several meta‐analyses combine an extensive amount of research concerned with predicting training success. General mental ability is regarded as the best predictor with specific abilities or tests explaining little additional variance. However, only few studies measured all predictors within one sample. Thus, intercorrelations were often estimated based on other studies. Moreover, new methods for correcting range restriction are now available. The present meta‐analyses used samples derived from a German company in which applicants for different apprenticeships were tested with an intelligence structure test, specific ability tests as well as a structured and an unstructured interview. Therefore, intercorrelations between different assessment tools did not have to be estimated from other data. Results in the final examination, taking place at least 2 years after the original assessment, served as criterion variable. The dominant role of general mental ability was confirmed. However, specific abilities were identified that can be used as valuable additions. Job complexity moderated some of the relationships. Structured interviews were found to have good incremental validity over and above general mental ability. Unstructured interviews, on the other hand, performed poorly. Practical implications are discussed.     

Auditory space perception in left- and right-handers

Several studies have shown that handedness has an impact on visual spatial abilities. Here we investigated the effect of laterality on auditory space perception. Participants (33 right-handers, 20 left-handers) completed two tasks of sound localization. In a dark, anechoic, and sound-proof room, sound stimuli (broadband noise) were presented via 21 loudspeakers mounted horizontally (from 80° on the left to 80° on the right). Participants had to localize the target either by using a swivel hand-pointer or by head-pointing. Individual lateral preferences of eye, ear, hand, and foot were obtained using a questionnaire. With both pointing methods, participants showed a bias in sound localization that was to the side contralateral to the preferred hand, an effect that was unrelated to their overall precision. This partially parallels findings in the visual modality as left-handers typically have a more rightward bias in visual line bisection compared with right-handers. Despite the differences in neural processing of auditory and visual spatial information these findings show similar effects of lateral preference on auditory and visual spatial perception. This suggests that supramodal neural processes are involved in the mechanisms generating laterality in space perception.     

Hemispheric specialization and creative thinking: A meta-analytic review of lateralization of creativity

In the last two decades research on the neurophysiological processes of creativity has found contradicting results. Whereas most research suggests right hemisphere dominance in creative thinking, left-hemisphere dominance has also been reported. The present research is a meta-analytic review of the literature to establish how creative thinking relates to relative hemispheric dominance. The analysis was performed on the basis of a non-parametric vote-counting approach and effect-size calculations of Cramer’s phi suggest relative dominance of the right hemisphere during creative thinking. Moderator analyses revealed no difference in predominant right-hemispheric activation for verbal vs. figural tasks, holistic vs. analytical tasks, and context-dependent vs. context-independent tasks. Suggestions for further investigations with the meta-analytic and neuroscience methodologies to answer the questions of left hemispheric activation and further moderation of the effects are discussed.