Updating working memory in aircraft noise and speech noise causes different fMRI activations

The present study used fMRI/BOLD neuroimaging to investigate how visual‐verbal working memory is updated when exposed to three different background‐noise conditions: speech noise, aircraft noise and silence. The number‐updating task that was used can distinguish between “substitution processes,” which involve adding new items to the working memory representation and suppressing old items, and “exclusion processes,” which involve rejecting new items and maintaining an intact memory set. The current findings supported the findings of a previous study by showing that substitution activated the dorsolateral prefrontal cortex, the posterior medial frontal cortex and the parietal lobes, whereas exclusion activated the anterior medial frontal cortex. Moreover, the prefrontal cortex was activated more by substitution processes when exposed to background speech than when exposed to aircraft noise. These results indicate that (a) the prefrontal cortex plays a special role when task‐irrelevant materials should be denied access to working memory and (b) that, when compensating for different types of noise, either different cognitive mechanisms are involved or those cognitive mechanisms that are involved are involved to different degrees.     

Breakup Adjustment in Young Adulthood

The purpose of this study was to assess the ability of young adults to adjust to the breakup of a romantic relationship by examining the possible predictors. The sample comprised 140 women and 143 men. Simultaneous regression analysis indicated that initiator status, existence of a new partner, certainty of the reasons for the breakup, and perceived social support were significant predictors and accounted for 18% of the variance in the measure of adjustment to breakup.     

Different Games for Different Motives: Comment on Haesevoets,Folmer, and Van Hiel (2015)

Recently, Haesevoets, Folmer, and Van Hiel (2015) strongly questioned the comparability and equivalence of different mixed‐motive situations as modelled in economic games. Particularly, the authors found that different games correlated only weakly on average and loaded on two separate factors. In turn, personality traits failed to consistently account for behavioural tendencies across games. Contrary to the conclusions of Haesevoets et al., these findings are actually perfectly in line with the game‐theoretic understanding of the different economic games. If one considers the variety of specific motives underlying decisions in different games, Haesevoets et al.'s findings actually support the validity of different games rather than questioning it. This, in turn, emphasizes the necessity for the plethora of different games that have been developed over decades in economics and psychology. Copyright © 2015 European Association of Personality Psychology     

Differences in the Between‐Person and Within‐Person Structures of Affect Are a Matter of Degree

This study tested whether the structure of affect observed on the basis of between‐person (BP) differences is equivalent to the affect structures that organize the variability of affective states within persons (WP) over time. Further aims were to identify individual differences in the degree of divergence between the WP and BP structure and examine its association to dispositional and contextual variables (neuroticism, extraversion, well‐being and stress). In 100 daily sessions, 101 younger adults rated their mood on the Positive and Negative Affect Schedule. Variability of five negative affect items across time was so low that they were excluded from the analyses. We thus worked with a modified negative affect subscale. WP affect structures diverged reliably from the BP structure, with individual differences in the degree of divergence. Differences in the WP structural characteristics and the degree of divergence could be predicted by well‐being and stress. We conclude that BP and WP structures of affect are not equivalent and that BP and WP variation should be considered as distinct phenomena. It would be wrong, for example, to conceive of positive and negative affect as independent at the WP level, as suggested by BP findings. Yet, individual differences in WP structural characteristics are related to stable BP differences, and the degree to which individuals' affect structures diverge from the BP structure can provide important insights into intraindividual functioning. Copyright © 2014 European Association of Personality Psychology     

A Comparison of Applicants' and Incumbents' Mean Scores on Health Constructs and Personality Constructs. A Follow‐up Study of Military Recruits in a Selection Setting

This study investigated the change in means on both personality constructs and the more infrequently studied, health constructs, as a possible effect of self‐enhancement in a real selection setting. The participants (N = 202) were assessed first as applicants, and later as incumbents. The result revealed that, while all the means for personality constructs changed across situations, the effect sizes on the health constructs were stronger. The analysis also revealed that it was twice as likely for the incumbents to confirm having experienced previous traumatic/stressful events compared with applicants. Implications for the observed changes on both personality and health constructs in military selection setting are discussed.