Psychological Determinants of Optimism Regarding Consequences of the War

Gazing behavior of 10 three-month-old twin infants (five male and five female) and their mothers during play, bottle feeding, and spoon feeding activities were analyzed. Video-tape equipment was used in the home; data were gathered as naturalistically as possible. Mothers looked at infants for a greater percentage of the total time and for longer durations than infants looked at mothers. A consistency-activation personality theory in which mothers are highly motivated to gaze at infants, but infants seek visual interest by looking away from mother, is suggested to interpret the findings. Both looking and not-looking gazes and mean and median measures of central tendency were shown to be helpful and necessary for the gazing analysis.     

Seven things to consider when measuring religious identity

Measuring religious identity is complex. The author offers seven suggestions for those who wish to describe and understand religious identity using survey data:

• (1)?Definitions and measures of religious identity shape knowledge about religious groups;

• (2)?Variation in question wording leads to variation in responses;

• (3)?Comparing results across surveys provides valuable perspective;

• (4)?Incentives shape how respondents report their religious identity;

• (5)?Religious identity may be liminal;

• (6)?Salient identity categories are often unmeasured; and

• (7)?Religious identity and religious practice may not seem congruent.

This essay includes many examples to illustrate these measurement suggestions.     

Teaching social play skills to adults and children with autism as an approach to building rapport

Adults with autism spectrum disorder (ASD) and no intellectual disabilities were taught to increase the social play skills of children with ASD as part of a vocational training program. Participants included 3 adults, aged 21 to 27 years, and 6 children with ASD. Probes conducted throughout the study evaluated whether play skills training affected a measure of rapport between the adult and child. Results demonstrated the effectiveness of behavioral skills training for teaching the adult participants the appropriate play skills. In addition, the children's social engagement increased. Finally, rapport probes showed that play skills training increased levels of proximity, our measure of rapport, between the adults and children.     

Environmental enrichment protects against the effects of chronic stress on cognitive and morphological measures of hippocampal integrity

Chronic stress has detrimental effects on hippocampal integrity, while environmental enrichment (EE) has beneficial effects when initiated early in development. In this study, we investigated whether EE initiated in adulthood would mitigate chronic stress effects on cognitive function and hippocampal neuronal architecture, when EE started one week before chronic stress began, or two weeks after chronic stress onset. Adult male Sprague Dawley rats were chronically restrained (6h/d) or assigned as non-stressed controls and subdivided into EE or non-EE housing. After restraint ended, rats were tested on a radial arm water maze (RAWM) for 2-d to assess spatial learning and memory. The first study showed that when EE began prior to 3-weeks of chronic stress, EE attenuated chronic stress-induced impairments in acquisition, which corresponded with the prevention of chronic stress-induced reductions in CA3 apical dendritic length. A second study showed that when EE began 2-weeks after the onset of a 5-week stress regimen, EE blocked chronic stress-induced impairments in acquisition and retention at 1-h and 24-h delays. RAWM performance corresponded with CA3 apical dendritic complexity. Moreover, rats in EE housing (control or stress) exhibited similar corticosterone profiles across weeks, which differed from the muted corticosterone response to restraint by the chronically stressed pair-housed rats. These data support the interpretation that chronic stress and EE may act on similar mechanisms within the hippocampus, and that manipulation of these factors may yield new directions for optimizing brain integrity and resilience under chronic stress or stress related neuropsychological disorders in the adult.