Understanding adolescent aggressive behavior：clues from the brain’s response to laboratory-induced aggression.

• Main Authors: Chung-Ru Chiou, 邱重儒
• Other Authors: Chiao-Yun Chen
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/10909229347386862974

碩士 === 國立中正大學 === 犯罪防治研究所 === 103 === Violent offenses often cause very serious problems and dangers to society. This type of behavior is often ascribed to problems with the processes involved in inhibitory control. In this study, a Taylor Aggression Task was used to examine the effects of aggressive situations and emotions on inhibitory control in adolescents who show reactive aggression. The experiment was designed with a manipulation of the proportion of win and loses and the degree of punishment in order to try to produce a social context in the laboratory. The Reactive Proactive Aggression Questionnaire (RPAQ) and Barratt Impulsiveness Scale (BIS) were used to measure the subjects’ aggression types and their degree of impulsive behavior. The participants included impulsive violent adolescent offenders (experimental group), non-violent adolescent offenders (control group 1) and normal adolescents (control group 2). The RPAQ and BIS showed that the scores of the experimental group were significantly higher than those of control groups. The behavioral data from the Taylor Aggression Task showed that the experimental group gave more punishment than did control groups 1 and 2. The punishment score for the first trial, which involved no provocation, was higher for the experimental group than for the controls. Analyzing the proportion of punishment scores, the percentage of high punishment scores (score 5-8) in the experimental group was larger than in the two control groups while the reverse was true for the low punishment scores. The N2 amplitude of the experimental group was significant lower the matched controls. There was no significant difference in DRN among three groups. The FRN amplitude of experimental group was significant higher than the control group 2. The violent adolescents may have a deficit in solving cognitive and emotional conflict and in evaluating social context for the modification of inhibitory control.