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Deficits in facial affect recognition in unaffected siblings of Xhosa schizophrenia patients: Evidence for a neurocognitive endophenotype (2008)The present study in an African Xhosa sample examined whether familial vulnerability to schizophrenia is associated with deficits in facial affect recognition. Healthy comparison subjects, unaffected siblings of schizophrenia ...
Emotional face processing deficit in schizophrenia: A replication study in a South African Xhosa population (2006)Schizophrenia is associated with a deficit in the recognition of negative emotions from facial expressions. The present study examined the universality of this finding by studying facial expression recognition in African ...