Abstract
Schizophrenia patients often show deficits in facial emotion recognition, which contributes to their poor social functioning. The present study investigated the time course of categorization of emotional faces in schizophrenia patients by recording and analyzing ERPs elicited by emotional faces. Behavioral data show that in comparison with controls, schizophrenia patients categorized emotional faces more slowly with decreased accuracy and did not show evident positive classification advantage. The ERP data showed that the N170 decreased in schizophrenia patients although it was not modulated by facial emotions. In comparison with controls, schizophrenia patients exhibited the lack of frontal and posterior N2 components and decreased P3 component, without P3 modulation of emotional faces. These data provide new evidence for the dysfunction of processing emotional faces in schizophrenia patients.
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