HEART RATE AND ANTISOCIAL BEHAVIOR: THE MEDIATING ROLE OF IMPULSIVE SENSATION SEEKING

Although a low resting heart rate is considered the best‐replicated biological correlate of antisocial behavior, the mechanism underlying this relationship remains largely unknown. Sensation‐seeking and fearlessness theories have been proposed to explain this relationship, although little empirical research has been conducted to test these theories. This study addressed this limitation by examining the relationship between heart rate and antisocial behavior in a community sample of 335 adolescent boys. Heart rate was measured during a series of cognitive, stress, and rest tasks. Participants also completed self‐report measures of state fear, impulsive sensation seeking, and both aggressive and nonaggressive forms of antisocial behavior. As expected, increased levels of aggression and nonviolent delinquency were associated with a low heart rate. Impulsive sensation seeking, but not fearlessness, significantly mediated the association between heart rate and aggression. This study is the first to show that impulsive sensation seeking partly underlies the relationship between aggression and heart rate, and it is one of the few to examine the mechanism of action linking heart rate to antisocial behavior. Findings at a theoretical level highlight the role of impulsive sensation seeking in understanding antisocial behavior and at an intervention level suggest it as a potential target for behavioral change.     

PARENTAL INVOLVEMENT IN THE CRIMINAL JUSTICE SYSTEM AND THE DEVELOPMENT OF YOUTH THEFT,MARIJUANA USE,DEPRESSION, AND POOR ACADEMIC PERFORMANCE*

Explanations for the fact that crime tends to run in families have focused on the deprived social backgrounds of criminal parents, methods of child‐rearing, modeling processes, and genetic mechanisms. However, parental involvement in the criminal justice system itself also might contribute to the intergenerational transmission of crime and have other adverse effects on children's well‐being. We investigated the development of youth problem behavior in relation to parental arrest, conviction, and incarceration in the youngest and oldest samples of the Pittsburgh Youth Study, a longitudinal survey of 1,009 inner‐city boys. Parental arrest and conviction without incarceration did not predict the development of youth problem behavior. Parental incarceration was not associated with increases in marijuana use, depression, or poor academic performance. However, boys experiencing parental incarceration showed greater increases in theft compared with a control group matched on propensity scores. The association between parental incarceration and youth theft was stronger for White youth than for Black youth. Parenting and peer relations after parental incarceration explained about half of its effects on youth theft. Because the effects of parental incarceration were specific to youth theft, labeling and stigma processes might be particularly important for understanding the consequences of parental incarceration for children.