Impaired identification of threat-related social information in male delinquents with antisocial personality disorder.

The present study aimed to investigate the identification of threat-related facial expressions in aggressive individuals with antisocial personality disorder (ASPD). Thirty-two male delinquents and matched healthy controls were presented with a series of animated morph-clips that gradually display the onset and development of angry, fearful, and happy facial expressions. ASPD subjects required significantly higher levels of emotional intensity to correctly identify the onset of an angry facial expression as compared to control participants. In contrast, recognition of fearful and happy expressions was unimpaired. These findings suggest a specific deficit in the identification of hostile facial expressions in ASPD populations.