Nicholas Tarantino

Genetic and Environmental Influences on Affiliation with Deviant Peers during Adolescence and Early Adulthood.

Adolescence and early adulthood is a time when peer groups become increasingly influential in the lives of young people. Youths exposed to deviant peers risk susceptibility to externalizing behaviors and related psychopathology. In addition to environmental correlates of deviant peer affiliation, a growing body of evidence has suggested that affiliation with deviant peers is heritable. This study examined the magnitude of genetic and environmental influences on affiliation with deviant peers, changes in the relative importance of these factors, and which of these factors contribute to the stability of affiliation across this critical developmental period using a longitudinal twin study design that assessed same-sex twins (485 monozygotic pairs, 271 dizygotic pairs) at 3 discrete ages: 15, 18, and 21 years of age. Biometric models revealed that genetic influences increased with age. New genetic influences appeared during late adolescence, and no new genetic influences emerged by age 21. Environmental influences shared by sibling pairs decreased with age, while the proportion of nonshared environmental effects unique to each individual remained relatively stable over the course of development. Shared environmental influences were largely age-overlapping, whereas nonshared environmental influences were largely age-specific. In summary, this study found variance in affiliation with deviant peers is explained by shared and nonshared environment effects as well as by genetic influences (46% by age 21), supporting the role of genetically influenced selection factors. The shared environment was almost exclusively responsible for the stability in late adolescence, while genetic influences were primarily responsible for stability in early adulthood.

Neighborhood disorder, spiritual well-being, and parenting stress in African American women.

Using a culturally informed risk-protective framework, the purpose of this study was to examine spiritual well-being (existential, religious) as a moderator (protective factor) in the relation between neighborhood disorder (risk factor) and parenting stress in a high-risk sample of low-socioeconomic status (SES) African American women (N = 144). These women, who were primary caregivers of children between 8 and 12 years old, reported on disorder in their existential and religious well-being, neighborhoods, and 3 types of parenting stress. Women who perceived more disorder in their neighborhood had more parenting stress, and women who reported more existential and religious well-being had less parenting stress. Existential (characterized by a sense of purpose in life), but not religious (characterized by a sense of life in relation with God) well-being moderated the relation between neighborhood disorder and all types of parenting stress, such that women with medium or high levels of existential well-being had low levels of parenting stress at low levels of neighborhood disorder, but higher levels of parenting stress at higher levels of neighborhood disorder. No moderation effects were found at low levels of existential well-being. Results are framed in a context that emphasizes their relevance to incorporating family interventions that bolster culturally relevant resilience factors, such as spirituality, pertinent to low-SES African American families.

Changes in Genetic and Environmental Influences on Trait Anxiety from Middle Adolescence to Early Adulthood

BACKGROUND Middle adolescence to early adulthood is an important developmental period for the emergence of anxiety. Genetically-influenced stable traits are thought to underlie internalizing psychopathology throughout development, but no studies have examined changes in genetic and environmental influences on trait anxiety during this period. METHOD A longitudinal twin study design was used to study same-sex twin pairs (485 monozygotic pairs, 271 dizygotic pairs) at three ages, 14, 18, and 21 years, to examine developmental shifts in genetic and environmental effects on trait anxiety. RESULTS The heritability of trait anxiety increased with age, particularly between ages 14 and 18, no significant new genetic influences emerged after age 14, and the genetic influences were highly correlated across the three ages, supporting developmentally stable genetic risk factors. The environmental effects shared by members of a family decreased in influence across adolescence, while the influence of environmental effects unique to each individual twin remained relatively stable over the course of development and were largely age-specific. LIMITATIONS The twin study design does not inform about specific genes and environmental risk factors. CONCLUSIONS Genetic influences increased in importance from middle to late adolescence but common genetic factors influenced trait anxiety across the three ages. Shared environmental influences decreased in importance and demonstrated negligible influence by late adolescence/early adulthood. Nonshared environmental effects were almost entirely age-specific. These findings support the importance of developmentally-sensitive interventions that target shared environmental factors prior to middle adolescence and shifting non-shared environmental risks at each age.

HIV prevention for juvenile drug court offenders: a randomized controlled trial focusing on affect management.

Juvenile drug court (JDC) offenders have benefited from evidence-based interventions addressing antisocial behavior, mental health, and substance use; however, interventions addressing HIV risk behavior are lacking. This study presents pilot findings and lessons learned from a group-based HIV prevention intervention delivered to JDC offenders. Participants were randomized to a five-session HIV prevention (n = 29) or health promotion (n = 28) condition and completed measures of sexual risk taking and substance use at baseline and 3 months postintervention. No between-group differences by time emerged on measures of sexual risk taking or other HIV-related behaviors and attitudes. Both groups improved their rates of HIV testing and decreased their substance use during sex over time. Delivering an HIV prevention intervention to drug court offenders is feasible; however, more intensive interventions that incorporate multiple systems and address co-occurring mental health difficulties may be needed to effect sexual behavioral change among these high-risk court-involved youth.

Crack and Cocaine Use among Adolescents in Psychiatric Treatment: Associations with HIV Risk

Crack and cocaine use among adults has been associated with co-occurring psychiatric disorders as well as other drug use and unprotected sex. However, this issue is relatively unstudied in adolescents. This study collected data from 282 adolescents (mean age = 14.9 years) treated in intensive psychiatric treatment settings to understand the relationship between crack/cocaine use and HIV risk. Thirteen percent of youths reported ever using crack or cocaine. Use was not associated with age, gender, race/ethnicity, or SES. After controlling for known factors that influence unprotected sex, the odds that those with a history of crack/cocaine use engaged in inconsistent condom use was six times greater than that for those youths who did not ever use. Thus, crack/cocaine use is prevalent even among younger adolescents with psychiatric disorders who are not in drug treatment. Its use is associated with high rates of sexual and other risk behaviors. A history of use should alert clinicians to a wide variety of possible behavioral risks. These results can also inform future adolescent HIV prevention intervention development.

Existential Well-Being, Drug Abuse, and Parenting Stress in African American Women

The current study examined the influence of existential well-being and drug abuse on parenting stress in a sample of low-income African American women (n = 152). Whereas existential well-being served as a protective factor against all three forms of parenting stress measured (parental distress, difficult child, and parent–child dysfunctional interaction), drug abuse was a risk factor for all three. Existential well-being was also inversely related to drug abuse. A path analysis was conducted to further elucidate the cross-sectional associations among these variables. A positive, indirect effect of existential well-being on two of the three components of parenting stress, parental distress and perceived child behavior problems, but not the third, parent–child relationship quality, through level of drug abuse was found in support of partial meditation. Clinical implications regarding enhancing and using existential well-being as a culturally-relevant coping mechanism for African American caregivers are considered, and the etiological mechanisms of parenting stress are discussed.

Depressive Symptoms, Illicit Drug Use and HIV/STI Risk Among Sexual Minority Young Adults.

This study examined the interaction of depressive symptoms and drug use on HIV/STI risk among sexual minority young adults. Analyses tested the interactive effect of depressive symptoms and drug use on unprotected sex. Among drug users, more depressive symptoms were associated with higher rates of unprotected sex with a male partner (for both male and female participants), but this was nonsignificant for nonusers. Interventions with these groups should incorporate content on depression and drug use to reduce HIV/STI risk. Prevention efforts also should not neglect the vulnerability of young women that have sex with women and/or identify as nonheterosexual.

Parent-Child Conflict and Drug Use in College Women: A Moderated Mediation Model of Self-Control and Mindfulness

This cross-sectional study examined the association between parent-child conflict and illicit drug use in a sample of female college students (N = 928). The mediating roles of self-control and mindfulness, as well as an interaction between self-control and mindfulness, were examined in a moderated mediation model for the purposes of expanding etiological theory and introducing targets for the prevention and treatment of drug abuse. Whereas deficits in self-control were found to facilitate the positive relation observed between parent-child conflict and the likelihood of experiencing drug-related problems, an interaction between mindfulness and self-control helped explain the association between parent-child conflict and intensity of drug-related problems. Parent-child conflict was related to low mindfulness when self-control was low, and low mindfulness in turn was related to a higher intensity of drug-related problems. This association did not exist for women with high self-control. Findings are consistent with developmental research on the etiology of drug use and the protective properties of mindfulness and self-control. Mindfulness as a potential target of intervention for drug users with low self-control to prevent drug-related problems is explored.

Savouring and Self-compassion as Protective Factors for Depression.

Within positive psychology, researchers and clinicians vocalize the need to expand upon how the treatment for major depressive disorder is conceptualized and implemented. The impetus of the current study was to examine preliminary criteria for identifying savouring and self-compassion as protective factors for depression. Undergraduate students (N = 133) completed a series of surveys at two points in time, 5 weeks apart. Results revealed that savouring and self-compassion were inversely related to depression scores cross-sectionally and prospectively. However, savouring was the only positive psychological variable to predict changes in depression scores across time. Cross-sectionally, savouring was also found to moderate the relation between negative life events and depression, such that the strength of the relation between negative life events and depression decreased when higher savouring was present. However, this same effect was not significant prospectively. There was no evidence, cross-sectionally or prospectively, that self-compassion moderated the relation between negative life events and depression. Taken together, results provide preliminary support for savouring as a protective factor for depressive symptoms. Mental health professionals should consider teaching savouring strategies to help at-risk clients stimulate and sustain positive affect as a means of preventing and reducing depressive symptoms. Copyright

Procrastination and suicide proneness: a moderated-mediation model for cognitive schemas and gender

ABSTRACT This study examined the direct and indirect paths between procrastination and suicide proneness while considering gender differences. Participants included 547 undergraduates from a southeastern university. Procrastination was positively related to suicide proneness for both genders, although this relation was stronger for women. Moderated-mediation analyses with bootstrapping highlighted insufficient self-control schemas as a mediator in the relation between procrastination and suicide proneness. However, indirect pathways did not vary by gender. Results represent an extension of the Procrastination-Health Model by highlighting the contribution of cognitive factors in explaining the relation between procrastination and suicide proneness.