Implicit learning of non-spatial sequences in schizophrenia

Cherie Marvel, Barbara L. Schwatz, Darlene V. Howard, James H. Howard

Research output: Contribution to journalArticle

Abstract

Recent studies have reported abnormal implicit learning of sequential patterns in patients with schizophrenia. Because these studies were based on visuospatial cues, the question remained whether patients were impaired simply due to the demands of spatial processing. This study examined implicit sequence learning in 24 patients with schizophrenia and 24 healthy controls using a non-spatial variation of the serial reaction time test (SRT) in which pattern stimuli alternated with random stimuli on every other trial. Both groups showed learning by responding faster and more accurately to pattern trials than to random trials. Patients, however, showed a smaller magnitude of sequence learning. Both groups were unable to demonstrate explicit knowledge of the nature of the pattern, confirming that learning occurred without awareness. Clinical variables were not correlated with the patients' learning deficits. Patients with schizophrenia have a decreased ability to develop sensitivity to regularly occurring sequences of events within their environment. This type of deficit may affect an array of cognitive and motor functions that rely on the perception of event regularity.

Original languageEnglish (US)
Pages (from-to)659-667
Number of pages9
JournalJournal of the International Neuropsychological Society
Volume11
Issue number6
DOIs
StatePublished - Oct 2005

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Schizophrenia
Learning
Aptitude
Cognition
Reaction Time
Cues
Spatial Learning

Keywords

  • Behavior
  • Cognition
  • Memory
  • Motor skills
  • Psychiatry
  • Serial learning

ASJC Scopus subject areas

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

Cite this

Implicit learning of non-spatial sequences in schizophrenia. / Marvel, Cherie; Schwatz, Barbara L.; Howard, Darlene V.; Howard, James H.

In: Journal of the International Neuropsychological Society, Vol. 11, No. 6, 10.2005, p. 659-667.

Research output: Contribution to journalArticle

Marvel, Cherie ; Schwatz, Barbara L. ; Howard, Darlene V. ; Howard, James H. / Implicit learning of non-spatial sequences in schizophrenia. In: Journal of the International Neuropsychological Society. 2005 ; Vol. 11, No. 6. pp. 659-667.
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