A Chip Off the Old Block: The Impact of Fathers on Sexual Offending Behavior.

While parenting factors are commonly included as early risk markers for sexual aggression, data specific to paternal impacts on sexual offending are scattered. This review provides a thorough and systematic account of what is known regarding the fathers of sexual offenders. Thirty-four studies were categorized according to four distinct research questions, each addressing theoretical mechanisms by which fathers may influence the violent sexual behavior of their sons. The results suggest that the strongest impacts occur when sons are witness to their fathers engaging in acts of sexual abuse or domestic violence, in accordance with social learning theory. Father-son attachment or relationship quality also appears to have a measurable impact on the son's engagement in sexual violence. However, paternal demographics and characteristics were generally ineffective at predicting sons' sexual offenses. Finally, the differences between fathers of adult and juvenile sexual offenders are explored. Implications of those findings for research and applied interventions are included as they may be informative for prevention programming.

The structural brain correlates of callous-unemotional traits in incarcerated male adolescents.

Youth with severe conduct problems impose a significant cost on society by engaging in high levels of antisocial and aggressive behavior. Within this group, adolescents with high levels of callous- unemotional traits have been found to exhibit more severe and persistent patterns of antisocial behavior than youth with severe conduct problems but normative levels of callous-unemotional traits. Existing neuroimaging studies, along with theoretical accounts of psychopathology, suggest that dysfunction within the paralimbic cortex and limbic system may underlie elevated levels of callous-unemotional traits. The present study examines this hypothesis by investigating gray matter correlates associated with callous-unemotional traits. A sample of incarcerated male adolescents (N = 269), were assessed using voxel-based morphometry. Callous-unemotional traits were assessed using the Inventory of Callous-Unemotional traits (Frick 2004). Total callous-unemotional traits were negatively correlated with anterior temporal lobe gray matter volume (GMV). Callous traits in particular exhibited a reliable negative correlation with gray matter volume in nearly every paralimbic brain region examined. Uncaring traits were positively correlated with GMV in the orbitofrontal and anterior cingulate cortices. These findings demonstrate specific neural features within the paralimbic cortex and limbic system that accompany elevated callous-unemotional traits and serves to expand our understanding of pathophysiological mechanisms that may give rise to severe conduct problems in youth.