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Self-face recognition is affected by schizotypal personality traits
Steven M Platek1, Gordon G Gallup
1Department of Psychology, State University of New York at Albany, 1400 Washington Avenue, Albany, NY 12222, USA.
Schizophrenia Research
|August 8, 2002
Summary
Individuals with higher schizotypal personality traits show impaired self-face processing, particularly in the right hemisphere. This suggests potential compromises in self-recognition linked to schizophrenia spectrum disorders in non-clinical populations.
Area of Science:
- Neuroscience
- Psychology
- Psychiatry
Background:
- The right cortical hemisphere is crucial for self-face image processing.
- Self-face processing deficits are hypothesized in schizophrenia spectrum disorders.
Purpose of the Study:
- To investigate the relationship between schizotypal personality traits and self-face processing.
- To examine reaction times to self-face images in relation to Schizotypal Personality Questionnaire (SPQ) scores.
Main Methods:
- Assessed reaction times to self-face images using left-hand responses.
- Correlated reaction times with scores on the Schizotypal Personality Questionnaire (SPQ).
- Compared reaction times to self-face versus stranger faces based on SPQ score thresholds.
Main Results:
- Left-hand reaction times to self-faces positively correlated with SPQ scores.
- Individuals with SPQ scores ≤20 showed faster self-face recognition with the left hand compared to stranger faces.
- Individuals with SPQ scores ≥21 exhibited a left-hand disadvantage for self-face recognition.
Conclusions:
- Schizotypal traits are associated with impaired right-hemisphere self-face processing.
- These findings suggest that self-face recognition may be compromised in individuals with traits related to schizophrenia spectrum disorders within a non-clinical population.