Abstract
To address whether the recognition of emotional facial expressions is impaired in schizophrenia across different cultures, patients with schizophrenia and age-matched normal controls in France and Japan were tested with a labeling task of emotional facial expressions and a matching task of unfamiliar faces. Schizophrenia patients in both France and Japan were less accurate in labeling fearful facial expressions. There was no correlation between the scores of facial emotion labeling and face matching. These results suggest that the impaired recognition of emotional facial expressions in schizophrenia is common across different cultures.
Highlights
Individuals with schizophrenia are characterized by impairments in emotional responses to other individuals (World Health Organization, 1993)
The results showed a significant interaction between diagnostic group and emotion [F(5,230) = 4.11, p < 0.005, η2p = 0.089], indicating that diagnostic groups differed in facial expression recognition differently across emotions
Our results showed that both schizophrenia groups were impaired in the recognition of fearful facial expressions
Summary
Individuals with schizophrenia are characterized by impairments in emotional responses to other individuals (World Health Organization, 1993). A culturally invariant nature has been assumed for schizophrenia in the standardized diagnosis system (World Health Organization, 1993), evidence suggests a socio-cultural influence on the symptoms of this disease (cf Thakker and Ward, 1998). It is unclear whether impaired facial expression processing in schizophrenia is culturally common or different across cultures. The schizophrenia patients in all groups showed impaired recognition of emotional facial expressions, suggesting a common nature of the impairment. The crosscultural and cross-emotional nature of impaired recognition of emotional facial expressions in schizophrenia and the relationship to basic face perception ability remain inconclusive
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