Effects of nutritional supplements on aggression, rule-breaking, and psychopathology among young adult prisoners.

In an earlier study, improvement of dietary status with food supplements led to a reduction in antisocial behavior among prisoners. Based on these earlier findings, a study of the effects of food supplements on aggression, rule-breaking, and psychopathology was conducted among young Dutch prisoners. Two hundred and twenty-one young adult prisoners (mean age=21.0, range 18-25 years) received nutritional supplements containing vitamins, minerals, and essential fatty acids or placebos, over a period of 1-3 months. As in the earlier (British) study, reported incidents were significantly reduced (P=.017, one-tailed) in the active condition (n=115), as compared with placebo (n=106). Other assessments, however, revealed no significant reductions in aggressiveness or psychiatric symptoms. As the incidents reported concerned aggressive and rule-breaking behavior as observed by the prison staff, the results are considered to be promising. However, as no significant improvements were found in a number of other (self-reported) outcome measures, the results should be interpreted with caution.

Survivors of childhood cancer and comparison peers: the influence of peer factors on later externalizing behavior in emerging adulthood.

OBJECTIVE: To examine group differences and predictors of externalizing behavior and substance use during the transition to emerging adulthood (i.e., ages 18-25) among survivors of childhood cancer and comparison peers. METHODS: Peer acceptance and social behavior were assessed in classrooms of 55 children (ages 8-15) during cancer treatment. Children with cancer, comparison peers (n = 60), and parents completed measures of externalizing behavior and/or substance use during an initial home visit and soon after participants turned 18. RESULTS: At follow-up, survivors and peers exhibited similar externalizing behaviors and substance use, except peers were more likely to use marijuana. Substance use was associated with earlier peer acceptance and social behavior. Survivors who were older at diagnosis were at greater risk for later externalizing behavior and substance use. CONCLUSIONS: Mean externalizing behaviors and substance use generally fell within normative ranges for both survivors and peers. Some survivors may benefit from interventions to reduce risk behavior.

Anger expression and essential hypertension: behavioral response to confrontation.

OBJECTIVE: The purpose of this study was to examine the range of anger-expressive behaviors and social competencies among essential hypertensive patients. METHODS: Behavioral reactions to both neutral and anger-evoking role-play interactions were measured in 26 hypertensive and 15 normotensive patients. Social behaviors were assessed using self-report measures of anger expression, assertiveness, self- and other-ratings of social competence and behavioral measures of anger expression observed during role-play interactions. RESULTS: Hypertensive patients showed less eye contact, used fewer positive assertive statements and were rated as being less assertive during confrontational role-play scenarios than normotensive controls. Hypertensive patients also exhibited higher pulse pressure reactions to confrontation than normotensives, particularly hypertensive patients who expressed anger overtly. CONCLUSION: Essential hypertension is associated with specific social skill deficits that are only apparent during the assertive expression of anger.