Familial transmission of Continuous Performance Test behavior: attentional and impulsive response characteristics

Continuous Performance Tests (CPTs) provide information on attentional processing and impulsive behavior. The results of previous research that used self-report measures have provided evidence for familial transmission (through genetic and/or environmental influences) of impulsive characteristics. The authors of the present study examined whether the impulsive behavioral parameters that are measured by the CPT also share familial relationships. The researchers asked 26 healthy parent-adolescent pairs to complete the Immediate and Delayed Memory Tasks (IMT/DMT; D. M. Dougherty, 1999; D. M. Dougherty, D. M. Marsh, & C. W. Mathias, 2002), a modified CPT (B. A. Cornblatt, N. J. Risch, G. Faris, D. Friedman, & L. Erlenmeyer-Kimling, 1988; H. E. Rosvold, A. Mirsky, I. Sarason, E. D. Breansome, Jr., & L. H. Beck, 1956), and the Barratt Impulsiveness Scale (BIS; J. H. Patton, M. S. Stanford, & E. S. Barratt, 1995), a self-report measure. The main findings can be summarized as follows: (a) commission errors (but not correct detections) on the IMT and DMT were correlated between parents and their adolescent children, (b) adolescents emitted a higher proportion of commission errors than did their parents, and (c) self-reported impulsivity (i.e., BIS) was correlated with commission errors for parents, but not for adolescents. The findings of this study support the use of an objective behavioral measure of impulsivity to assess familial relationships of impulsivity.     

Day-level transformational leadership and followers’ daily level of stress: a moderated mediation model of team cooperation,role conflict,and type of communication

This study contributes to the literature on leadership by linking day-level transformational leadership behaviour with employees’ daily level of stress. A first-stage moderated mediation framework consisting of team cooperation, role conflict, and type of daily communication is introduced to specify how and when leaders’ transformational behaviour is related to followers’ daily stress. Two hundred five participants took part in a diary study over five consecutive working days and provided information on their leaders’ transformational behaviour, team cooperation, role conflict, type of communication with supervisors, as well as information on their daily level of stress. Results show that transformational leader behaviour is significantly related to followers’ level of stress on a day-to-day basis. This relationship is mediated by team cooperation, but not by role conflict. The type of communication moderates this mediation framework. If only indirect means of communication are used, the negative indirect relation between transformational leader behaviour via team cooperation on daily stress is strengthened. The results are discussed in the context of leadership literature, and the implications for future research as well as practice are presented.     

Closing the Solidarity Gap? How Ethnic Diversity Alters Who We Are Willing to Support

Citizens tend to be more solidary with ethnic ingroup members than ethnic outgroup members. As a result, increasing ethnic diversity is often found to impede solidarity. Although this perspective is well established, I present an alternative argument: Under circumstances that foster intergroup contact, increasing diversity promotes, rather than impedes, intergroup solidarity. To test this argument, I combine a survey experiment fielded among Danish students with quasi-random observational data on students' classroom ethnic composition. I find that ethnic-majority adolescents are on average more willing to support ethnic-majority recipients than immigrant and ethnic-minority recipients. Yet, although increasing diversity does not moderate the majority-minority solidarity gap, increasing diversity diminishes and erases the majority-immigrant solidarity gap. As further shown, one explanation is that immigrants in particular face strong stereotypes of being lazy and that ethnic diversity reduces this specific stereotype. These findings suggest that immigration and solidarity need not be incompatible. Under certain circumstances, ethnic diversity at worst leaves intergroup solidarity unaltered and at best improves such solidarity.     

How Reliably Do Eye Parameters Indicate Internal Versus External Attentional Focus?

Eye behavior is increasingly used as an indicator of internal versus external focus of attention both in research and application. However, available findings are partly inconsistent, which might be attributed to the different nature of the employed types of internal and external cognition tasks. The present study, therefore, investigated how consistently different eye parameters respond to internal versus external attentional focus across three task modalities: numerical, verbal, and visuo-spatial. Three eye parameters robustly differentiated between internal and external attentional focus across all tasks. Blinks, pupil diameter variance, and fixation disparity variance were consistently increased during internally directed attention. We also observed substantial attentional focus effects on other parameters (pupil diameter, fixation disparity, saccades, and microsaccades), but they were moderated by task type. Single-trial analysis of our data using machine learning techniques further confirmed our results: Classifying the focus of attention by means of eye tracking works well across participants, but generalizing across tasks proves to be challenging. Based on the effects of task type on eye parameters, we discuss what eye parameters are best suited as indicators of internal versus external attentional focus in different settings.     

How Are Personality States Associated with Smartphone Data?

Smartphones promise great potential for personality science to study people's everyday life behaviours. Even though personality psychologists have become increasingly interested in the study of personality states, associations between smartphone data and personality states have not yet been investigated. This study provides a first step towards understanding how smartphones may be used for behavioural assessment of personality states. We explored the relationships between Big Five personality states and data from smartphone sensors and usage logs. On the basis of the existing literature, we first compiled a set of behavioural and situational indicators, which are potentially related to personality states. We then applied them on an experience sampling data set containing 5748 personality state responses that are self-assessments of 30 minutes timeframes and corresponding smartphone data. We used machine learning analyses to investigate the predictability of personality states from the set of indicators. The results showed that only for extraversion, smartphone data (specifically, ambient noise level) were informative beyond what could be predicted based on time and day of the week alone. The results point to continuing challenges in realizing the potential of smartphone data for psychological research. © 2020 The Authors. European Journal of Personality published by John Wiley & Sons Ltd on behalf of European Association of Personality Psychology