title: Reduced brain activation in violent adolescents during response inhibition.
abstract: Deficits in inhibitory control have been linked to aggression and violent behaviour. This study aimed to observe whether violent adolescents show different brain activation patterns during response inhibition and to ascertain the roles these brain regions play. A self-report method and modified overt aggression scale (MOAS) were used to evaluate violent behaviour. Functional magnetic resonance imaging was performed in 22 violent adolescents and 17 matched healthy subjects aged 12 to 18 years. While scanning, a go/no-go task was performed. Between-group comparisons revealed that activation in the bilateral middle and superior temporal gyrus, hippocampus, and right orbitofrontal area (BA11) regions were significantly reduced in the violent group compared with the control group. Meanwhile, the violent group had more widespread activation in the prefrontal cortex than that observed in the control group. Activation of the prefrontal cortex in the violent group was widespread but lacking in focus, failing to produce intensive activation in some functionally related regions during response inhibition.
authors.affiliation: Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Qiao
authors.affiliation: Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Mei
authors.affiliation: East China Normal University, 3663 Zhongshan bei road, Shanghai 200062, China.
authors.forename: XiaoXia
authors.initials: X
authors.lastname: Du
authors.affiliation: Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Xie
authors.affiliation: Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Shao
mesh_terms: D000293:Adolescent; D000374:Aggression; D001921:Brain / Q000503:physiopathology*; D002648:Child; D006801:Humans; D008297:Male; D014754:Violence