The dysfunction of processing emotional faces in schizophrenia revealed by expression-related visual mismatch negativity. Issue 10 (4th July 2018)

• Record Type: Journal Article
• Authors: Yin, Guimei; She, Shenglin; Zhao, Lun; Zheng, Yingjun
• Is Part Of: NeuroReport. Volume 29:Issue 10(2018)
• Publication Date: 2018-07-04
• Subjects: event-related potentials -- facial expression -- schizophrenia -- visual mismatch negativity; Neurosciences -- Periodicals; Nervous system -- Periodicals; Neurophysiology -- Periodicals; Nervous System Diseases -- Periodicals; Nervous System Physiological Phenomena -- Periodicals; Neurosciences -- Periodicals; 616.805
• DOI: 10.1097/WNR.0000000000001037
• Languages: English
• ISSNs: 0959-4965

Abstract

Abstract : To investigate the emotional face processing in patients with schizophrenia, the preattentive automatic processing of emotional faces in individuals with schizophrenia was compared with that of age-matched healthy control group as indexed by the expressional mismatch negativity (EMMN) elicited by facial expressions. Compared with neutral faces as standard stimuli, deviant emotional faces elicited posterior EMMN between 150 and 500 ms after stimuli onset, with larger amplitudes for sad than happy deviant faces. Both early and late EMMNs significantly decreased in the schizophrenia group, regardless of sad or happy EMMN, in comparison with the healthy control group. These data suggest the dysfunction of automatic processing of expressional information in patients with schizophrenia.