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The dysfunction of processing emotional faces in schizophrenia revealed by expression-related visual mismatch negativity

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 fa...

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Detalles Bibliográficos
Autores principales: Yin, Guimei, She, Shenglin, Zhao, Lun, Zheng, Yingjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Lippincott Williams & Wilkins 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5999386/
https://www.ncbi.nlm.nih.gov/pubmed/29782379
http://dx.doi.org/10.1097/WNR.0000000000001037
Descripción
Sumario: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.