title: Late positive potentials in affective picture processing during adolescence.
abstract: Recent research in adults has determined that late positive potential (LPP) is modulated by affective pictures. Here we investigated whether affective modulation of LPP reflects developmental changes during adolescence. Event-related potentials were recorded from 50 adolescents (11-17 years old) while they viewed 90 pictures of middle arousal level from the Chinese affective picture system. Consistent with previous studies in adults, affective pictures elicited larger LPP activities than neutral pictures over bilateral centroparietal sensors. Moreover, the LPP amplitudes varied as a function of age, increasing with age regardless of picture valence. These observations imply that adolescents exhibit affective modulation of LPP similar to adults, and undergo developmental changes in automatic attention to affective or non-affective pictures.
authors.affiliation: Mental Health Center, Yancheng Institute of Technology, Yancheng, China. zwh2007106@126.com
authors.forename: Wenhai
authors.initials: W
authors.lastname: Zhang
authors.forename: Jiamei
authors.initials: J
authors.lastname: Lu
authors.forename: Hailin
authors.initials: H
authors.lastname: Fang
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Pan
authors.forename: Junhua
authors.initials: J
authors.lastname: Zhang
authors.forename: Dahua
authors.initials: D
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000339:Affect; D001288:Attention; D001931:Brain Mapping; D054022:Cerebrum / Q000502:physiology*; D002648:Child; D004569:Electroencephalography; D004644:Emotions; D005074:Evoked Potentials, Visual; D005260:Female; D006801:Humans; D008297:Male; D011930:Reaction Time