The role of sustained attention,maternal sensitivity,and infant temperament in the development of early self-regulation

This study investigated infant predictors of early cognitive and emotional self-regulation from an intrinsic and caregiving environmental perspective. Sustained attention, reactive aspects of infant temperament, and maternal sensitivity were assessed at 10 months (n = 124) and early self-regulation (including executive functions, EF, and emotion regulation) was assessed at 18 months. The results indicated that sustained attention predicted early EF, which provide empirical support for the hierarchical framework of EF development, advocating early attention as a foundation for the development of cognitive self-regulation. Maternal sensitivity and surgency predicted emotion regulation, in that infants of sensitive mothers showed more regulatory behaviours and a longer latency to distress, whereas high levels of surgency predicted low emotion regulation, suggesting both the caregiving environment and temperament as important in the development of self-regulation. Interaction effects suggested high sustained attention to be a protective factor for children of insensitive mothers, in relation to emotion regulation. In addition, high levels of maternal sensitivity seemed to foster development of emotion regulation among children with low to medium levels of sustained attention and/or surgency. In all, our findings point to the importance of both intrinsic and extrinsic factors in infant development of self-regulation.     

Increased parasympathetic activity and ability to generate positive emotion: The influence of the BDNF Val66Met polymorphism on emotion flexibility

Cross-species behavioral research suggests that a single nucleotide polymorphism (SNP) in the brain-derived neurotrophic factor (BDNF) gene (rs6265, Val66Met), influences behavioral inflexibility. This SNP has not yet been linked to variability in emotion-related behaviors, despite broader evidence suggesting an association may be present. This investigation explored the role of the BDNF Val66Met polymorphism in emotion response behaviors measured during a lab-based emotional provocation. Specifically, the influence of BDNF Val66Met in emotion flexibility was explored in a sample of healthy adults (N?=?120), emotion responses were recorded during the emotional provocation on multiple dimensions, in response to emotionally-evocative videos of negative then positive valence. These results suggest that Met carriers exhibit decreased parasympathetic responding, and reduced ability to generate positive emotion, relative to Val homozygotes. These findings are the first to suggest an association between the Met allele and a pattern of responding indicative of emotion inflexibility that might afford greater risk for psychopathology.     

Japanese‐American confinement and scientific democracy: Colonialism,social engineering,and government administration

During World War II, the U.S. Indian Service conducted social science experiments regarding governance among Japanese Americans imprisoned at the Poston, Arizona, camp. Researchers used an array of techniques culled from anthropological culture and personality studies, psychiatry, psychology, medicine, and public opinion research to probe how the personality traits of the confined Japanese‐Americans and camp leaders affected the social interactions within each group and between them. The research drew on prior studies of Indian personality in the US Southwest, Mexico's Native policies, and indirect colonial rule. Researchers asked how democracy functioned in contexts marked by hierarchy and difference. Their goal was to guide future policies toward US “minorities“ and foreign races in post‐war occupied territories. We show how researchers deployed ideas about race, cultural, and difference across a variety of cases to create a universal, predictive social science, which they combined with a prewar romanticism and cultural relativism. These researchers made ethnic, racial, and cultural difference compatible with predictive laws of science based on notions of fundamental human similarities.