Examined the longitudinal relation between children's self-report of witnessing community violence, family environment, and parent report of child antisocial behavior in a sample of 6- to 10-year-old urban American boys (N = 97) at familial risk for antisocial behavior. Boys reported high rates of lifetime exposure to community violence. Boys' reports of witnessing community violence were significantly positively related to changes over 15 months in child antisocial behavior, even after controlling for the possible effects of 3 aspects of parent-child interactions shown previously to be related to problematic child behavior. Furthermore, family environment, particularly the degree to which parents engaged in conflict with their sons, moderated the effect of witnessed violence on changes in antisocial behavior. In families with low conflict, higher levels of witnessed violence predicted increases in antisocial behavior over time. In contrast, in families with relatively high levels of parent-child conflict, high-witnessed violence had no additional influence on antisocial outcome. This is the first prospective longitudinal study to document an association between witnessed community violence and changes in antisocial behavior in young, urban boys at familial risk for antisocial behavior.
The consensus of evidence published since 1924 suggests that parents report attention deficits, hyperactivity, or conduct disorder after pediatric head injury rather than postconcussion syndrome. In this study, the symptoms reported by children after mild (n = 38) and moderate-severe (n = 27) head trauma were compared to those reported after orthopedic injury (n = 47) and to adults matched for injury severity and chronicity by using a structured interview based on diagnostic criteria for postconcussion syndrome. Pediatric head trauma caused significantly more subjective symptoms after 6 weeks than orthopedic injury. These symptoms were related to head injury severity and the child's anxiety level. When assessed in a similar manner, children report postconcussion syndrome similar to that seen in adults.
To examine associations between heart period variability (HPV) and psychopathology in young urban boys at risk for delinquency, a series of 697-11-year-old younger brothers of adjudicated delinquents received a standardized psychiatric evaluation and an assessment of heart period variability (HPV). Psychiatric symptoms were rated in two domains: externalizing and internalizing psychopathology. Continuous measures of both externalizing and internalizing psychopathology were associated with reductions in HPV components related to parasympathetic activity. These associations could not be explained by a number of potentially confounding variables, such as age, ethnicity, social class, body size, or family history of hypertension. Although familial hypertension predicted reduced HPV and externalizing psychopathology, associations between externalizing psychopathology and HPV were independent of familial hypertension. Psychiatric symptoms are associated with reduced HPV in young urban boys at risk for delinquency.
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