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Related Experiment Videos

Individual differences in spatial working memory in relation to schizotypy

S Park1, P S Holzman, M F Lenzenweger

  • 1Department of Psychology, Northwestern University, Evanston, Illinois 60208-2710, USA.

Journal of Abnormal Psychology
|May 1, 1995
PubMed
Summary

Students with high perceptual aberrations showed impaired spatial working memory and set maintenance. These findings suggest potential neuropsychological differences in individuals with schizotypy traits.

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Area of Science:

  • Neuroscience
  • Psychology
  • Cognitive Science

Background:

  • Schizotypy is associated with cognitive deficits.
  • Spatial working memory is crucial for cognitive function.
  • Perceptual Aberration Scale (PerAb) measures schizotypy traits.

Purpose of the Study:

  • To investigate spatial working memory in students with high vs. low PerAb scores.
  • To assess executive functions using the Wisconsin Card Sorting Test (WCST).

Main Methods:

  • Delayed-response task to measure spatial working memory.
  • Wisconsin Card Sorting Test for executive function assessment.
  • Participant groups: High PerAb (n=28) and Low PerAb (n=23) undergraduate students.

Main Results:

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  • High PerAb students performed less accurately on the delayed-response task.
  • High PerAb students were more likely to show spatial working memory impairment.
  • No significant differences in WCST perseverative errors or categories achieved.
  • High PerAb students demonstrated poorer set maintenance.

Conclusions:

  • Individuals with high schizotypy traits exhibit deficits in spatial working memory and set maintenance.
  • Findings suggest specific neuropsychological alterations related to schizotypy.
  • Further research is needed to explore the implications of these cognitive differences.