Related Experiment Video
Updated: May 6, 2026

Conscious and Non-conscious Representations of Emotional Faces in Asperger's Syndrome
Published on: July 31, 2016
Event-related synchronization of delta and beta oscillations reflects developmental changes in the processing of
Wenhai Zhang1, Jiamei Lu, Xia Liu
1Mental Health Center, Yancheng Institute of Technology, Yancheng City, China; Department of Psychology, Shanghai Normal University, Shanghai City, China.
Abstract:
Recent research has determined that affective pictures modulate event-related delta and beta oscillations in adults. However, it is unclear whether these brain oscillations reflect developmental changes in the processing of affective information during adolescence. EEG data were collected from 51 adolescents and 18 undergraduates as they viewed a total of 90 pictures. In the range of fast wave activities, event-related synchronization (ERS) in the beta band varied with emotional valence, indicating that beta ERS is indicative of early bottom-up processing of visual emotional stimuli. Adolescents at the age of 12years exhibited more positive beta ERS amplitudes over posterior brain regions for positive versus neutral pictures compared to adolescents at the ages 14years, 16years and in young adults; however, no age-related differences were found for negative versus neutral pictures. In the range of slow wave activities, delta ERSs and late positive potential (LPP) amplitudes exhibited affective modulation and decreased over anterior brain regions from between the age of 12years and early adulthood. These slow wave activities (delta and LPPs) reflected top-down attention to the motivational relevance of the emotional stimuli. Taken together, these observations suggest that adolescents exhibit dissociable ERS patterns in the delta and beta bands during affective processing. Furthermore, adolescents undergo age-dependent changes in oscillatory brain reorganization. Our results should be useful to researchers interested in affective processing during adolescence.
Related Concept Videos
Cognitive Development During Adolescence
Erikson's Theory on Socioemotional Development during Adolescence
Socioemotional Development during Infancy
Primary Temperament Types
Revisionist Views of Adolescent and Adult Cognition

