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Processing and recognition of facial affect in schizophrenia
E J Federman1, C E Drebing, J I Zaref
1Psychology Service (116B), ENRM VA Medical Center, Bedford, MA 01730, USA. federman.ed@bedford.va.gov
Perceptual and Motor Skills
|December 8, 1998
Summary
People with schizophrenia show deficits in recognizing facial emotions. A left visual-field bias improved recognition of sadness, suggesting hemispheric differences impact emotional processing in schizophrenia.
Area of Science:
- Neuroscience
- Psychiatry
- Cognitive Psychology
Background:
- Facial affect recognition deficits are common in schizophrenia.
- Previous research indicated a link between hemispheric bias and facial affect recognition accuracy in healthy individuals.
Purpose of the Study:
- To investigate if the relationship between hemispheric bias and facial affect recognition accuracy observed in healthy subjects also applies to individuals with schizophrenia.
- To explore the role of individual differences in hemispheric processing advantage in the context of schizophrenia.
Main Methods:
- A sample of 25 individuals diagnosed with schizophrenia completed tasks assessing facial affect identification and chimeric facial affect processing.
- Hemispheric bias was assessed by analyzing performance on tasks involving visual fields.
Main Results:
- Participants with a left visual-field bias demonstrated significantly higher accuracy in identifying the emotion of sadness compared to other participants.
- This finding suggests a specific advantage for left-hemisphere processing in recognizing certain facial emotions within this patient group.
Conclusions:
- Individual variations in hemispheric advantage for processing emotional information are significant in schizophrenia.
- These differences may represent an important factor in understanding functional brain capacity and cognitive variations within the schizophrenia population.