Temperament moderates the effects of early deprivation on infant attention

Institutional care has been shown to increase the risk of attention problems in children, but some children are more sensitive to their environment, both for better and for worse. With this in mind, the current study examined the moderating role of temperament (falling reactivity) between early adversity and attention skills. Six- to 15-month-old infants residing in institutions (n = 63) and infants reared by their biological families from low socioeconomic environments (n = 59) were recruited. The infants’ attention skills were measured by calculating the length of time they spent looking at toys. The infants’ temperaments were measured by a subscale of the Infant Behavior Questionnaire (falling reactivity/rate of recovery from distress). The findings were in line with the differential susceptibility theory. Compared to infants with high levels of falling reactivity, infants with lower levels of falling reactivity had better attention skills if they were in a family group, but they had lower attention skills if they were residing in institutions. The attention skills of the infants who had higher scores for falling reactivity did not appear to be affected by the adverse environment.     

The age-varying effects of adolescent stress on impulsivity and sensation seeking

Adolescence is defined in part by heightened exposure and sensitivity to stressors. In a longitudinal cohort of youth at risk for substance use problems, we examined the age-varying relationship between stress exposure and traits that are central to the dual systems model. The positive associations between stress exposure, impulsivity, sensation seeking varied as function of age. Specifically, the influence of stress exposure on impulsivity strengthened during early adolescence and remained stable into early adulthood, while the influence of stress exposure on sensation seeking strengthened from early- to mid-adolescence and weakened thereafter. These findings suggest that the maturational imbalance between the capacity to regulate impulsive tendencies and sensation seeking may be exaggerated for youth who are exposed to a high number of stressors.     

The effects of familial acculturative stress and hopelessness on suicidal ideation by immigration status among college students

Objectives: Based on acculturative family distancing theory, we examined whether familial acculturative stress interacted with hopelessness to predict suicidal ideation differentially among emerging adult immigrant versus nonimmigrant college students. Participants: We recruited 152 generationally and racially/ethnically diverse college students (42 immigrants) from 2012 to 2013. Methods: Participants completed measures of hopelessness, depressive symptoms, ethnic identity, familial acculturative stress, and suicidal ideation. Results: Immigrant status interacted with hopelessness and familial acculturative stress. Hopelessness was associated with less suicidal ideation among immigrants than among nonimmigrants at a familial acculturative stress score below the 11th percentile, but greater suicidal ideation among immigrants than among nonimmigrants at a familial acculturative stress score above the 72nd percentile. Conclusions: Familial acculturative stress may exacerbate the effect of hopelessness on suicidal ideation among immigrant college students, and should be monitored during suicide risk assessment and treatment.