Executive Functions in Preschool Children Born Preterm: Application of Cognitive Neuroscience Paradigms

Although children born preterm are at risk for neuropsychological impairments at school age and adolescence, including difficulties with visual motor integration, spatial/constructional skills, attention, arithmetic, and nonverbal executive functions, specific neuropsychological outcome has not been investigated adequately in preschoolers. Application of cognitive neuroscience tasks offers the opportunity to characterize early executive functions in young children born preterm. In a preliminary sample of 29 preschool children born preterm (M birth gestational age = 32.4 weeks), executive function outcome was compared to that of fullterm controls by contrasting performance on two prototypic delayed-response-type paradigms, Delayed Alternation and Spatial Reversal. Preschoolers born preterm correctly retrieved the reward on fewer trials on Delayed Alternation than did matched controls. Furthermore, preschool children born preterm used problem-solving strategies that included more perseverative errors than controls. These preliminary findings highlight the utility of cognitive neuroscience paradigms to understand neuropsychological outcome in preschool children born preterm and suggest areas of developmental vulnerability that may include dorsolateral prefrontal circuits.     

Naturalizing Moral Justification: Rethinking the Method of Moral Epistemology

The companion piece to this article, “Situating Moral Justification,” challenges the idea that moral epistemology's mission is to establish a single, all‐purpose reasoning strategy for moral justification because no reasoning practice can be expected to deliver authoritative moral conclusions in all social contexts. The present article argues that rethinking the mission of moral epistemology requires rethinking its method as well. Philosophers cannot learn which reasoning practices are suitable to use in particular contexts exclusively by exploring logical relations among concepts. Instead, in order to understand which reasoning practices are capable of justifying moral claims in different types of contexts, we need to study empirically the relationships between reasoning practices and the contexts in which they are used. The article proposes that philosophers investigate case studies of real‐world moral disputes in which people lack shared cultural assumptions and/or are unequal in social power. It motivates and explains the proposed case study method and illustrates the philosophical value of this method through a case study.     

Emotional labor demands and compensating wage differentials

The concept of emotional labor demands and their effects on workers has received considerable attention in recent years, with most studies concentrating on stress, burnout, satisfaction, or other affective outcomes. This study extends the literature by examining the relationship between emotional labor demands and wages at the occupational level. Theories describing the expected effects of job demands and working conditions on wages are described. Results suggest that higher levels of emotional labor demands are associated with lower wage rates for jobs low in cognitive demands and with higher wage rates for jobs high in cognitive demands. Implications of these findings are discussed.     

Resurgence of response sequences during extinction in rats shows a primacy effect

Rats were trained to emit a series of three-response sequences to a criterion (i.e., more than 80% of all emitted sequences correct over five successive sessions). Each rat was trained on a series of different, three-response sequences. After the final three-response sequence was acquired, two extinction tests were administered, and the three-response sequences that re-emerged during these extinction tests were noted. Resurgence effects during extinction were observed; that is, the previously trained sequences were emitted. These resurgence effects followed an orderly pattern, which involved a primacy effect. The rats initially emitted the immediately previously trained response, but then started to emit the response sequence they first were trained to emit. Thus, resurgence behavior during extinction can be an orderly function of previous training history. These results replicate those previously obtained with human subjects.     

Depressive Symptomatology among HIV-Positive Women in the Era of HAART: A Stress and Coping Model

Objective: An enhanced stress and coping model was used to explain depression among HIV-positive women in healthcare and community settings where highly active anti-retroviral treatment (HAART) was commonplace. Method: HIV-infected women in four cities (N=978) were assessed, cross-sectionally, for mental and physical health, stress, social support, and other background factors. Results: Self-reported level of depressive symptomatology was high. Number of physical symptoms, illness intrusiveness, and perceived stress were positively associated with depressed mood, while coping self-efficacy and social support were negatively associated. Stress mediated the effect of health status on depression and coping self-efficacy mediated the effect of psychosocial resources on depression. Our enhanced stress and coping model accounted for 52% of variance in depressive symtpomatology. Conclusions: Interventions focused on improving coping self-efficacy, bolstering social supports, and decreasing stress in the lives of HIV-positive women may help to reduce the negative effects of HIV disease on mood.     

REM restriction persistently alters strategy used to solve a spatial task

We tested the hypothesis that rapid eye movement (REM) sleep is important for complex associative learning by restricting rats from entering REM sleep for 4 h either immediately after training on an eight-box spatial task (0-4 REMr) or 4 h following training (4-8 REMr). Both groups of REM-restricted rats eventually reached the same overall performance level as did nonrestricted controls, but 0-4 REMr animals were delayed in their improvement in the first few days and lagged behind controls in the middle portion of the training period. More importantly, performance gains of 0-4 REMr rats depended more on simple local cues throughout the 15-d study since, unlike control and 4-8 REMr animals, their error rate increased after daily disruption of the relationship between local (intramaze) cues and the food reward. Thus, although overall performance was only subtly and transiently impaired, due to the ability to use alternate, nonspatial behavioral strategies, complex associative (spatial) learning was persistently impaired by restricting REM for a short critical period each day.     

Can opposites attract? Personality heterogeneity in supervisor-subordinate dyads as a predictor of subordinate outcomes

Unlike the majority of research hypothesizing that similarity between individuals results in positive individual outcomes, this article examines whether dissimilarity results in positive outcomes. On the basis of interpersonal interaction theory, the authors hypothesized that dissimilarity in the personality dimension of control within supervisor-subordinate dyads is positively associated with the subordinate's satisfaction with the supervisor; results obtained with polynomial regression techniques were supportive. However, for 2 other outcomes, organizational citizenship behaviors and work withdrawal, neither similarity nor dissimilarity within the dyad was important; subordinate level of control was related to organizational citizenship behaviors reported by subordinates, and supervisor level of control was related to work withdrawal reported by subordinates. These findings portray the importance of examining relationship complexities beyond similarity in organizational dyad research.     

Assessing object-to-picture and picture-to-object matching as prerequisite skills for pictorial preference assessments

Tangible and pictorial paired-stimulus (PPS) preference assessments were compared for 6 individuals with developmental disabilities. During tangible and PPS assessments, two edible items or photographs were presented on each trial, respectively, and approach responses were recorded. Both assessments yielded similar preference hierarchies for 3 participants who could match pictures and objects but different hierarchies for 3 participants who could not. Reinforcer assessments verified that items identified as high preference on PPS assessments functioned as reinforcers only for participants with matching skills.     

Power and the creation of patronizing environments: the stereotype-based behaviors of the powerful and their effects on female performance in masculine domains

This work tested the following hypothesis: When powerful men stereotype their female subordinates in masculine domains, they behave in patronizing ways that affect the performance of their subordinates. Experiment 1 examined the stereotyping tendencies and patronizing behaviors of the powerful. Findings revealed that powerful men who stereotyped their female subordinates (i.e., those who were weakness focused) gave female subordinates few valued resources but much praise. In Experiment 2, low-power participants received resources (valued or devalued positions) and praise (high or low) from a powerful man. Subordinates who were assigned to a devalued position but received high praise (i.e., the patronizing behavior mirrored from Experiment 1) were angry. However, men performed better in the anger-inspiring situation, whereas women performed worse.