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Related Experiment Videos

Perceptual aberrations impair mental own-body transformations.

C Mohr1, O Blanke, P Brugger

  • 1Department of Experimental Psychology, University of Bristol, Bristol, United Kingdom. christine.mohr@bris.ac.uk

Behavioral Neuroscience
|June 14, 2006
PubMed
Summary

Men with higher perceptual aberration scores showed slower reaction times in an own-body transformation task. This suggests a link between altered body experiences and cognitive processing deficits in schizophrenia spectrum individuals.

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Area of Science:

  • Cognitive Neuroscience
  • Psychopathology
  • Body Perception

Background:

  • Schizophrenia spectrum disorders are associated with dysfunctional self and bodily processing.
  • Schizotypal traits may involve alterations in body schema perception.

Purpose of the Study:

  • To investigate the relationship between self-rated schizotypal body schema alterations and performance on a mental own-body transformation task.
  • To explore potential neural underpinnings related to temporo-parietal junction function.

Main Methods:

  • 72 students (40 women) completed a speeded left-right decision task using depicted human figures.
  • Participants also self-rated the frequency of schizotypal body schema alterations (perceptual aberration).

Main Results:

Related Experiment Videos

  • For male participants, increased scores on the perceptual aberration scale correlated with longer reaction times.
  • Slower responses were observed for disembodied perspectives in men with higher perceptual aberration.

Conclusions:

  • Findings provide behavioral evidence linking everyday aberrant bodily experiences to impaired mental own-body transformation.
  • This suggests potential mild dysfunction at the temporo-parietal junction in individuals with schizotypal traits.