Genetic effects on male sexual coercion

The genetic and environmental influences on sexual coercion, and to what extent its associations with alcohol use and psychopathy depend on shared genetic and environmental effects, were explored in a Finnish population-based sample of 938 men, aged 33-43 years, using the classical twin study design. All three phenotypes were associated positively and affected by genes (sexual coercion 28%, alcohol use 60%, psychopathy 54%), with 46% of the correlation between sexual coercion and psychopathy, 89% of the correlation between alcohol use and psychopathy and 100% of the correlation between sexual coercion and alcohol use being explained by shared genetic effects. Further, the results showed that a proportion of the variance in sexual coercion was derived from a highly genetic source that was common with alcohol use and psychopathy. This latent factor was hypothesized to reflect a general tendency for antisocial behavior that is pervasive across different situations. Relevant theories on sexual coercion were discussed in light of the results.     

Political ideology and labor arbitrators' decision making in work-family conflict cases

Labor arbitrators were asked to render decisions about grievances brought by employees who had been fired because of problems created by work conflicts with family responsibilities. The study examined the effects of experimentally manipulated grievant attributes (gender, type of work-family conflict) as well as arbitrator attributes (gender, political ideology) on decision making. When employees were depicted as having had child care problems, liberal arbitrators tended to favor female over male grievants, and political conservatism predicted more favorable judgments rendered toward male grievants. Overall, the data suggest that child care responsibilities cue different patterns of gender bias among liberal and conservative decision makers.     

The effects of video game playing on attention, memory, and executive control

Expert video game players often outperform non-players on measures of basic attention and performance. Such differences might result from exposure to video games or they might reflect other group differences between those people who do or do not play video games. Recent research has suggested a causal relationship between playing action video games and improvements in a variety of visual and attentional skills (e.g., [Green, C. S., & Bavelier, D. (2003). Action video game modifies visual selective attention. Nature, 423, 534-537]). The current research sought to replicate and extend these results by examining both expert/non-gamer differences and the effects of video game playing on tasks tapping a wider range of cognitive abilities, including attention, memory, and executive control. Non-gamers played 20+ h of an action video game, a puzzle game, or a real-time strategy game. Expert gamers and non-gamers differed on a number of basic cognitive skills: experts could track objects moving at greater speeds, better detected changes to objects stored in visual short-term memory, switched more quickly from one task to another, and mentally rotated objects more efficiently. Strikingly, extensive video game practice did not substantially enhance performance for non-gamers on most cognitive tasks, although they did improve somewhat in mental rotation performance. Our results suggest that at least some differences between video game experts and non-gamers in basic cognitive performance result either from far more extensive video game experience or from pre-existing group differences in abilities that result in a self-selection effect.     

Toddlers' use of cues in a search task

Search for a ball that has undergone hidden motion rapidly improves during the second year of life (Dev. Psychol., 2000; 36 :394–401). In three experiments we investigated whether the poor performance of younger toddlers was due to attentional failure by highlighting the major cue for the hidden object. We observed only slight improvement in search behaviour. We performed two other experiments that tested the depth of understanding of 3‐year‐olds in this task and found that their performance was robust to changes in the apparatus and experimental procedures. Overall, the results point to a rapidly developing ability in the second year of life to either reason about space or select the correct motor response in search tasks. Copyright © 2008 John Wiley & Sons, Ltd.     

Trajectories of social withdrawal from grades 1 to 6: prediction from early parenting, attachment, and temperament

From 1,092 children in the NICHD Study of Early Child Care and Youth Development, the authors identified 3 trajectory patterns of social withdrawal from teacher reports in Grades 1-6: a normative consistently low group (86%), a decreasing group (5%) with initially high withdrawal that decreased, and an increasing group (9%) with initially low withdrawal that increased. Prediction models supported the role of early dysregulated temperament, insensitive parenting, and attachment. Preschool shy temperament was a specific pathway to decreasing withdrawal, and poor inhibitory control was a specific pathway to increasing withdrawal. Children on the increasing pathway were more lonely, solitary, and were excluded by peers. Results suggest differentiated pathways to varying trajectories of social withdrawal and highlight the importance of identification of longitudinal patterns in relation to risk.     

From hand to mouth in the evolution of language: the influence of vocal behavior on lateralized hand use in manual gestures by chimpanzees (Pan troglodytes)

Studies in human subjects indicate that manual gestures accompanied by speech are produced more often by the right compared to the left hand. Additional studies indicate that the production of sign language is controlled by the same brain areas as speech, suggesting similar neurobiological substrates for language that are not modality specific. We report evidence that chimpanzees exhibit preferential use of the right hand in gestural communication. Moreover, use of the right hand in gestural communication is significantly enhanced when accompanied by a vocalization, particularly among human‐reared chimpanzees. Taken together, the data suggest that the lateralization of manual and speech systems of communication may date back as far as 5 million years ago.     

The Grace of God and the Equality of Human Persons

The central concept in Reformation Theology—grace—finds resonance with notions of grace in Indian culture. The challenge of grace in India today is to bring equality to persons victimized by caste and genter discrimination. This article discusses (1) the biblical and theological meaning of "the grace of God"; (2) the universality of the grace experience; (3) the experience of society's excluded peoples; (4) sin; and (5) the graced community as a community of equals.     

Derogating black sheep: Individual or group protection?

What motivates people to derogate unfavorable ingroup members more harshly than comparably unfavorable outgroup members? Researchers investigating the black sheep effect maintain that this differential derogation is a means of group protection. In contrast, we argue that derogating unfavorable ingroup members may be an individual protection strategy whereby target devaluation distances an unfavorable other from the self as a means of limiting the threat of being associatively miscast. Participants read an article describing an unfavorable ingroup or outgroup target, and then received two means of responding to the target: target devaluation and group disidentification. Importantly, group disidentification was considered to be a uniquely individualistic distancing strategy. We found that both response options substituted for one another, depending on the order of presentation. Substitutability, we argue, suggests that the primary motive behind ingroup derogation in our study was distance augmentation, an individual protection strategy.     

Effects of Friendship Circles on the Social Interactions of Elementary Age Students with Mild Disabilities

This study assessed the effects of Friendship Circles on the social interactions between students with mild disabilities and their nondisabled peers. A multiple probe design was used to analyze the social interactions during lunch. Data also were collected in the form of sociograms and anecdotal records. In addition, generalization was assessed during recess observations. Results indicated that the Friendship Circle intervention produced increases in appropriate interactions at lunch for all three students and for two there were increases in friendly play at recess. Anecdotal data suggested improved social interactions for two of the students throughout the day and improved social behaviors in the general education classroom such as cooperation during group activities. Implications for future research are discussed.