Psychometrically matched visual-processing tasks in schizophrenia spectrum disorders

Colleen A. Brenner, Marcia A. Wilt, Paul H. Lysaker, Andrew Koyfman, Brian F. O'Donnell

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

Patients with schizophrenia show deficits in visual perception and working memory, but the relationship between these deficits has not been characterized with psychometrically matched tasks. The authors administered 2 visual discrimination and 6 recognition tasks to 43 schizophrenia spectrum patients and 22 nonpsychiatric subjects. When performing difficulty-matched tasks, spectrum subjects showed more severe impairments for motion compared with form processing. When tasks were matched on true score variance, spectrum subjects exhibited worse performance on both form and motion discrimination, and a differential deficit in motion recognition with a short display duration and long interstimulus interval. These results provide evidence of differential deficits in visual processing in schizophrenia that appear to be dependent on the temporal characteristics of the tasks.

Original languageEnglish (US)
Pages (from-to)28-37
Number of pages10
JournalJournal of Abnormal Psychology
Volume112
Issue number1
DOIs
StatePublished - Feb 1 2003

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ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry

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