Investigating the other-race effect in working memory

People have difficulties in remembering other-race faces; this so-called other-race effect (ORE) has been frequently observed in long-term recognition memory (LTM). Several theories argue that the ORE in LTM is caused by differences in earlier processing stages, such as encoding of ingroup and outgroup faces. We test this hypothesis by exploring whether the ORE can already be observed in visual working memory (VWM)—an intermediate system located between encoding processes and LTM storage. In four independent experiments, we observed decreased performance for outgroup faces compared to ingroup faces using three different VWM tasks: an adaptive N-back task, a self-ordered pointing task, and a change detection task. Also, we found that the number of items stored in VWM is smaller for outgroup faces than for ingroup faces. Further, we explored whether performance differences in the change detection task are related to the classic ORE in recognition memory. Our results provide further evidence that the ORE originates during earlier stages of cognitive processing. We discuss that (how) future ORE research may benefit from considering theories and evidence from the VWM literature.     

Development,Social-Emotional Behavior and Resilience of Orphaned Children in a Family-Oriented Setting

SOS children’s villages take care of orphaned or abandoned children who are likely to suffer from multiple psychosocial problems. Nevertheless, much is not known about the developmental, social-emotional, nutritional and resilience status of young SOS children (SOSc) living in poor settings of developing countries such as Ethiopia. The present study examined the developmental, social-emotional, nutritional and resilience status of SOSc in Jimma town of Ethiopia. In total, we selected 62 children (3.5–71.8 months of age; 32 boys and 30 girls) and tested for their personal-social, language, fine and gross motor development with the culturally adapted and standardized developmental screening tool, Denver II-Jimma; and their social-emotional behavior with the ages and stages questionnaire: social-emotional (ASQ:SE). We compared their outcomes to 62 age- and sex- matched family-reared children. To estimate the nutritional status of all children, we followed the WHO child growth standards. We used an interview guide to investigate resilience of the children. SOSc performed significantly poorer on language (p?<?0.001, effect size (es)?=?0.957), gross motor (p?<?0.001, es?=?0.879) and social-emotional (p?<?0.001, es?=?1.220) outcomes. Twenty-two (35.5%) of SOSc were undernourished and 17 (77.30%) of them were stunted. SOSc demonstrated resilient behavior, and child, SOS family and community characteristics were the major protective factors which enabled them to thrive in spite of the loss of their parents. Early intervention focusing on language, gross motor and social-emotional skills may be particularly beneficial to support children in SOS villages.     

Self‐Control Success Revealed: Greater Approach Motivation Towards Healthy versus Unhealthy Food

Deviating from existing literature on self‐control failure the current research examines self‐control success and the role of motivation. Functional research suggests people visually perceive objects to be bigger when they are motivated to approach them. Using the size perception task, participants estimated the size of a healthy and an unhealthy food object that were identical in size. In the current research we simulated a reflective state vs. impulsive state using an ego‐depletion manipulation in Study 1 and a cognitive load manipulation in Study 2. Results from both studies revealed that participants in a reflective state (vs. impulsive state) assigned increased size estimations to the healthy food item compared to the unhealthy food item. Current findings demonstrate greater approach motivation towards a ‘virtue’ (i.e., healthy food) as a mechanism that underlies self‐control success, suggesting that successful self‐control involves initiating approach towards a virtue rather than inhibiting a vice. Copyright © 2016 John Wiley & Sons, Ltd.     

In the Shadow of Emile: Pedagogues, Pediatricians, Physical Education, 1686–1762

This article takes as its starting point the commonplace that Rousseau??s Emile enabled his contemporaries to discover not only childhood but physical education. Focused on what the pedestal erected for Jean-Jacques somewhat overshadows, a brief historiographic overview and a survey of some major writings on education before Rousseau (by the Abbot Fleury, John Locke, Jean-Pierre de Crousaz and Charles Rollin) will show that the ideas defended by the writer were not innovative in the slightest. But also, and this seems far more important, that these ideas took place in a particular context : the mid-eighteenth century dispute between pedagogues and physicians over the body of the child, which resulted as much from the medicalization of pedagogy as from the educationalization of medicine, at a time when the boundaries between disciplines had not yet been defined. In the context of the ascension to power of physicians, reinforced by the first statistics on child mortality, as will be suggested in conclusion, Rousseau??s advocacy for corporal education gave the initiative back to the pedagogues.     

Dogs are able to solve a means-end task

Dogs, although very skilled in social-communicative tasks, have shown limited abilities in the domain of physical cognition. Consequently, several researchers hypothesized that domestication enhanced dogs’ cognitive abilities in the social realm, but relaxed selection on the physical one. For instance, dogs failed to demonstrate means-end understanding, an important form of relying on physical causal connection, when tested in a string-pulling task. Here, we tested dogs in an “on/off” task using a novel approach. Thirty-two dogs were confronted with four different conditions in which they could choose between two boards one with a reward “on” and another one with a reward “off” (reward was placed next to the board). The dogs chose the correct board when (1) both rewards were placed at the same distance from the dog, when (2) the reward placed “on” the board was closer to the dog, and (3) even when the reward placed “off” the board was much closer to the dog and was food. Interestingly, in the latter case, dogs did not perform above chance, if instead of a direct reward, the dogs had to retrieve an object placed on the board to get a food reward. In contrast to previous string-pulling studies, our results show that dogs are able to solve a means-end task even if proximity of the unsupported reward is a confounding factor.     

Convergent and divergent responses to emotional displays of ingroup and outgroup

In the present research, we test the assumption that emotional mimicry and contagion are moderated by group membership. We report two studies using facial electromyography (EMG; Study 1), Facial Action Coding System (FACS; Study 2), and self-reported emotions (Study 2) as dependent measures. As predicted, both studies show that ingroup anger and fear displays were mimicked to a greater extent than outgroup displays of these emotions. The self-report data in Study 2 further showed specific divergent reactions to outgroup anger and fear displays. Outgroup anger evoked fear, and outgroup fear evoked aversion. Interestingly, mimicry increased liking for ingroup models but not for outgroup models. The findings are discussed in terms of the social functions of emotions in group contexts. (PsycINFO Database Record (c) 2011 APA, all rights reserved).     

Tones inferior to eye movements in the EMDR treatment of PTSD

Eye Movement Desensitization and Reprocessing (EMDR) is an effective treatment for posttraumatic stress disorder (PTSD). During EMDR, patients make eye movements (EMs) while recalling traumatic memories, but recently therapists have replaced EMs by alternating beep tones. There are no outcome studies on the effects of tones. In an earlier analogue study, tones were inferior to EMs in the reduction of vividness of aversive memories. In a first EMDR session, 12 PTSD patients recalled trauma memories in three conditions: recall only, recall + tones, and recall + EMs. Three competing hypotheses were tested: 1) EMs are as effective as tones and better than recall only, 2) EMs are better than tones and tones are as effective as recall only, and 3) EMs are better than tones and tones are better than recall only. The order of conditions was balanced, each condition was delivered twice, and decline in memory vividness and emotionality served as outcome measures. The data strongly support hypothesis 2 and 3 over 1: EMs outperformed tones while it remained unclear if tones add to recall only. The findings add to earlier considerations and earlier analogue findings suggesting that EMs are superior to tones and that replacing the former by the latter was premature.     

Pasnau on the material–immaterial divide in early modern philosophy

In Metaphysical Themes: 1274–1671, Robert Pasnau compares the medieval and early modern approaches to the material-immaterial divide and suggests the medievals held the advantage on this issue. I argue for the opposite conclusion. I also argue against his suggestion that we should approach the divide through the notion of a special type of extension for immaterial entities, and propose that instead we should focus on their indivisibility.