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  • Title: Impaired emotion perception in schizophrenia: a differential deficit.
    Author: Kosmidis MH, Bozikas VP, Giannakou M, Anezoulaki D, Fantie BD, Karavatos A.
    Journal: Psychiatry Res; 2007 Jan 15; 149(1-3):279-84. PubMed ID: 17161465.
    Abstract:
    We investigated previously reported contradictory findings regarding the nature of deficits in emotion perception among patients with schizophrenia. Some studies have concluded that such deficits are due to a generalized impairment in visual processing of faces, while others have found it to be restricted to facial emotional expressions. We examined 37 patients and 32 healthy controls, matched on age and education, using three computerized tests: matching facial identity, matching facial emotional expressions, and discrimination of subtle differences in the valence of facial emotional expressions. Our results showed impaired matching of emotions in patients with schizophrenia. This impairment did not manifest on tasks that depended on perceiving the identity of faces or cues of the relative valence of facial emotional expressions. Our findings support the differential deficit hypothesis of emotion perception in schizophrenia.
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