Genetic and environmental contributions to general cognitive ability through the first 16 years of life

The genetic and environmental contributions to the development of general cognitive ability throughout the first 16 years of life were examined using sibling data from the Colorado Adoption Project. Correlations were analyzed along with structural equation models to characterize the genetic and environmental influences on longitudinal stability and instability. Intraclass correlations reflected both considerable genetic influence at each age and modest shared environmental influence within and across ages. Modeling results suggested that genetic factors mediated phenotypic stability throughout this entire period, whereas most age-to-age instability appeared to be due to nonshared environmental influences.     

Not all executive functions are related to intelligence

Accumulating evidence suggests that executive functions (EFs) are related to intelligence, despite neuropsychological results initially considered evidence of no such relation. However, findings that EFs are not unitary raise the issue of how intelligence relates to different EFs. This study examined the relations of fluid and crystallized intelligence and Wechsler Adult Intelligence Scale IQ to three separable EFs--inhibiting prepotent responses (inhibiting), shifting mental sets (shifting), and updating working memory (updating)--in young adults. Updating was highly correlated with the intelligence measures, but inhibiting and shifting were not. Furthermore, in structural equation models controlling for the inter-EF correlations, updating remained strongly related to intelligence, but the relations of inhibiting and shifting to intelligence were small and not significant. The results indicate that intelligence measures differentially relate to these three EFs, suggesting that current intelligence measures do not equally assess a wide range of executive control abilities likely required for many "intelligent" behaviors.     

Toni Morrison's Beloved: A Journey through the Pain of Grief

This paper elucidates the structure of Toni Morrison's novel, Beloved, using the framework of human emotions in response to grieving and death as developed by Elisabeth Kubler-Ross. Through her studies of terminally ill patients, Kubler-Ross identified five stages when approaching death: denial and isolation, anger, bargaining, depression and acceptance. These stages accurately fill the process that the character Sethe experiences in the novel as she learns to accept her daughter's death.     

Perfectionism, ego defense styles, and depression: a comparison of self-reports versus informant ratings

The present study examined the associations among perfectionism, defense styles, and depression in an Israeli community sample of young adults. This study involved a comparison of self-reports and informant ratings on all measures. A community sample of 210 pairs of same-sex best friends from Israel completed the Multidimensional Perfectionism Scale, the Defense Styles Questionnaire - 40, and a depression measure. Analyses confirmed that socially prescribed perfectionism is associated with depression, not only in terms of self-reports but also in terms of informant ratings. In addition, informant ratings revealed a link between other-oriented perfectionism and depression. Both self-reports and informant ratings also indicated that socially prescribed perfectionism is associated with immature defense styles and neurotic defense styles. Further simultaneous Structural Equation Modeling (SEM) analyses of self-reports and informant ratings showed that maladaptive defense styles mediate the link between socially prescribed perfectionism and depression. The practical and theoretical implications of these findings are discussed.     

Observers' reaction to parent-child intimacy

A study was carried out to examine how people react to acts of intimacy between parent and child. Based on an extensive series of studies reported in 1998 by Reis who found less intimate interactions between two men who are friends than between men or women or between two women who are friends, it was reasoned that intimacy between two males may violate norms of our culture, so it was predicted that people would react less favorably to intimacy between father and son than to intimacy between father and daughter, mother and daughter, or mother and son. Men (n = 19) and women (n=26), most of whom were 18-24 years of age, read versions of a mother or father having an intimate interaction (lap-sit, hair-stroke, hug/kiss) with an 11-yr.-old daughter or son and then rated the act on a 7-point scale from good to bad. As predicted, the undergraduates rated intimate interactions between father and son less favorably than those between father and daughter, mother and daughter, and mother and son.     

Safe haven in adolescence: Improving parental reflective functioning and youth attachment and mental health with the Connecting and Reflecting Experience

Attachment security provides a well-documented protective developmental function for children exposed to individual- and community-level trauma, yet the effectiveness of prevention and intervention efforts targeting attachment during adolescence has been relatively underexplored. The Connecting and Reflecting Experience (CARE) program is a transdiagnostic, bi-generational, group-based, mentalizing-focused parenting intervention developed to dismantle the intergenerational transmission of trauma and support secure attachment relationships across the developmental spectrum within an under-resourced community. This exploratory study evaluated outcomes among caregiver-adolescent dyads (N = 32) in the CARE condition of a nonrandomized clinical trial at an outpatient mental health clinic within a diverse, urban U.S. community with disproportionate trauma exposure exacerbated by COVID-19. Caregivers predominantly identified as Black/African/African American (47%), Hispanic/Latina (38%), and/or White (19%). At pre- and post-intervention, caregivers completed questionnaires regarding parental mentalizing and their adolescents’ psychosocial functioning. Adolescents completed scales regarding attachment and psychosocial functioning. Results showed a significant decrease in caregivers’ prementalizing on the Parental Reflective Functioning Questionnaire, improvement in adolescent psychosocial functioning on the Youth Outcomes Questionnaire, and an increase in adolescents’ reports of attachment security on the Security Scale. These preliminary findings suggest that mentalizing-focused parenting interventions may be effective in fostering improved attachment security and psychosocial functioning during adolescence.     

Observers' reaction to touchers

20 men and 20 women were shown nine photographs in which two people were interacting. The first photograph shown showed a male and a female engaged in a nontouching interaction. The remaining eight photographs showed a touching interaction. Subjects rated their affective reaction to each of the touching interactions relative to their reaction to the first (nontouch) interaction. In the latter 8 photographs, the person facing the camera was either male or female, the person with back to camera was either male or female, and the touch shown was either a hand touch or a hug. All touching interactions were rated more positively than the standard (nontouch interactions). Male and female subjects tended to show identical reactions to the photographs. More positive reactions were shown to cross-sex hugging than to same-sex hugging and interactions showing hand touch.     

The Perceived Stress Scale: Factor structure and relation to depression symptoms in a psychiatric sample

The present study sought to examine the factor structure and psychometric properties of the Perceived Stress Scale (PSS) when administered to psychiatric patients. We also examined predictive validity of the PSS by assessing the association between the Perceived Stress Scale and the Beck Depression Inventory. A heterogeneous sample of 96 psychiatric patients (48 men, 48 women) completed the Perceived Stress Scale (PSS) and the Beck Depression Inventory. Factor analysis of the PSS established that the scale consisted of two factors. The first factor was comprised primarily of items reflecting adaptational symptoms. In contrast, the second factor consisted of items reflecting coping ability. Both factors had an adequate degree of internal consistency. Finally, a series of regression analyses predicting depression found that both factors accounted for unique variance in depression scores in women, but only the first factor accounted for unique variance in men. It is concluded that the PSS is a multidimensional and internally consistent measure of perceived stress.This research was supported by Grant 410-91-1690 from the social sciences and Humanities Research Council of Canada as well as by grants from the Research and Program Evaluation Committee Brockville Psychiatric Hospital.