Self-injurious and aggressive behaviors are common in fragile X syndrome (FXS). However, little is known about the persistence of these behaviors and associated risk markers. We established the prevalence and persistence of self-injurious and aggressive behaviors over eight years in males with FXS, and associations with risk markers. Results…

The current study investigated gender differences in types and correlates of aggression among 150 adjudicated youth (M age = 15.2, SD = 1.4). In cluster analysis, consistent with past studies, one aggressive group characterized by moderate levels of reactive aggression and one characterized by high levels of proactive and reactive aggression…

The present study investigated differences in the behavioral and psychophysiological responses to provocation and in the level of callous-unemotional traits in boys exhibiting different patterns of aggression. Eighty-five boys (ages 13-18) in a juvenile detention center played a competitive computer task against a hypothetical peer who provided…

Interest in conceptualizing the interpersonal style of individuals who engage in serious antisocial behavior has increased in recent years. This study examines the personality, psychopathological, and behavioral correlates of interpersonal dominance and warmth, as operationalized via scales of the Personality Assessment Inventory (L. Morey, 2007),…

To investigate effects of pain cues on behavior, responses of high and low aggressive boys were followed either by pain cues or by nonpain cues. Overall, pain cues facilitated the rate of responding more than nonpain cues. More responses were made by high aggressive boys than by low aggressive boys. (Author)

Many psychologists assert that boys are in dire straits in U.S. society, but in fact, there is no evidence of an emotional or behavioral epidemic for either sex. If there is any truth to the claim that boys are in trouble, it results from practices that foster aggression. It is a mistake to regard either gender as "fragile." (SLD)

Results are contrary to the expectation that father absence affects overt masculine behavior. (Authors)

Research has revealed a considerable degree of stability of Type A behavior from adolescence to adulthood. Other research has reported an association between anger and certain dimensions of cardiovascular risk in adolescent subjects. Such findings suggest that further study of the Type A phenomenon as it is expressed in adolescents may enhance…

Two studies examined the hypothesis that sexually coercive behavior is part of a larger constellation of non-sexual deviant behaviors. The first study considered the relationship between various antisocial intentions and self-reported levels of sexual aggression. As a part of a larger study, college men (N=108) responded to the Sexual Experiences…

Observed rough-and-tumble play in young adolescent boys on the playground. Found that sociometrically defined average and rejected boys spent a greater portion of their time in rough play compared to popular boys and did so with children who were less dominant than they, suggesting that some children exploit play bouts for their own…