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Wisconsin Card Sorting Test performance in schizophrenia: the role of working memory.

Publication ,  Journal Article
Hartman, M; Steketee, MC; Silva, S; Lanning, K; Andersson, C
Published in: Schizophrenia research
October 2003

Schizophrenia typically results in reduced performance on the Wisconsin Card Sorting Test (WCST). In the current study, we used a variety of approaches to examine the role of working memory (WM) in this deficit. One approach was to examine patterns of perseverative and non-perseverative errors. A second approach involved the comparison of the standard WCST to a modified version that used visual cues to reduce demands on WM. A third approach was to quantify the impact of WM demands on performance on a trial by trial basis. Consistent with theories of WM, the schizophrenia group showed increases in both perseverative and non-perseverative errors and differences between individuals with schizophrenia and controls were largest when WM demands were high. The visual cues helped the schizophrenia group overcome the high WM demands of the test, although they did not reduce the impairment in terms of standard scoring procedures. All impairments disappeared, however, after controlling for group differences on a measure of the speed of encoding information in WM. The pattern of results supports the conclusion that WM impairment contributes to poor performance on the WCST in individuals with schizophrenia, with additional evidence that this impairment results from generalized slowing of information processing.

Duke Scholars

Published In

Schizophrenia research

DOI

EISSN

1573-2509

ISSN

0920-9964

Publication Date

October 2003

Volume

63

Issue

3

Start / End Page

201 / 217

Related Subject Headings

  • Schizophrenic Psychology
  • Schizophrenia
  • Reaction Time
  • Psychometrics
  • Psychiatry
  • Pattern Recognition, Visual
  • Neuropsychological Tests
  • Middle Aged
  • Memory, Short-Term
  • Male
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Hartman, M., Steketee, M. C., Silva, S., Lanning, K., & Andersson, C. (2003). Wisconsin Card Sorting Test performance in schizophrenia: the role of working memory. Schizophrenia Research, 63(3), 201–217. https://doi.org/10.1016/s0920-9964(02)00353-5
Hartman, Marilyn, Mareah C. Steketee, Susan Silva, Kristi Lanning, and Candace Andersson. “Wisconsin Card Sorting Test performance in schizophrenia: the role of working memory.Schizophrenia Research 63, no. 3 (October 2003): 201–17. https://doi.org/10.1016/s0920-9964(02)00353-5.
Hartman M, Steketee MC, Silva S, Lanning K, Andersson C. Wisconsin Card Sorting Test performance in schizophrenia: the role of working memory. Schizophrenia research. 2003 Oct;63(3):201–17.
Hartman, Marilyn, et al. “Wisconsin Card Sorting Test performance in schizophrenia: the role of working memory.Schizophrenia Research, vol. 63, no. 3, Oct. 2003, pp. 201–17. Epmc, doi:10.1016/s0920-9964(02)00353-5.
Hartman M, Steketee MC, Silva S, Lanning K, Andersson C. Wisconsin Card Sorting Test performance in schizophrenia: the role of working memory. Schizophrenia research. 2003 Oct;63(3):201–217.
Journal cover image

Published In

Schizophrenia research

DOI

EISSN

1573-2509

ISSN

0920-9964

Publication Date

October 2003

Volume

63

Issue

3

Start / End Page

201 / 217

Related Subject Headings

  • Schizophrenic Psychology
  • Schizophrenia
  • Reaction Time
  • Psychometrics
  • Psychiatry
  • Pattern Recognition, Visual
  • Neuropsychological Tests
  • Middle Aged
  • Memory, Short-Term
  • Male