Immediate versus sustained processing in schizophrenia

Ruth Salo, Avishai Henik, Thomas E Nordahl, Lynn C. Robertson

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

A Stroop negative priming (NP) task was used to assess immediate selective attention and priming in schizophrenia and schizoaffective disorder. Subject groups were comprised of 12 state hospital inpatients (41.8 ± 7.5 years of age), 11 outpatients (39.8 ± 7.5 years of age), and 16 controls (36.4 ± 11.7 years of age). Compared with the control group and the outpatients, inpatients failed to exhibit NP [F(2,36) = 6.09, p < .01], despite exhibiting equivalent Stroop RT interference (p > .05). Error rates did not differ significantly between the 3 groups. Although medication types and dosages were similar between the 2 patient groups, length of illness was significantly longer in the inpatients (19.8 years) than in the outpatients (12.4 years; p < .05). Positive symptom ratings were also significantly higher in the inpatients. The finding reduced NP in the state hospital patients appears to be related to severity of symptomatology and chronicity of illness.

Original languageEnglish (US)
Pages (from-to)794-803
Number of pages10
JournalJournal of the International Neuropsychological Society
Volume8
Issue number6
DOIs
StatePublished - Sep 2002

Keywords

  • Priming
  • Schizophrenia
  • Selective attention
  • Stroop

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Psychiatry and Mental health
  • Neuroscience(all)
  • Psychology(all)

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