Correlation between errors on the Wisconsin Card Sorting Test and the availability of striatal dopamine transporters in healthy volunteers

Pei Chun Hsieh, Tzung Lieh Yeh, I. Hui Lee, Hui Chun Huang, Po See Chen, Yen Kuang Yang, Nan Tsing Chiu, Ru Band Lu, Mei Hsiu Liao

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35 Citations (Scopus)

Abstract

Background: Although studies have indicated that the frontal lobe plays an important role in performance on the Wisconsin Card Sorting Test (WCST) and that basal ganglia play a specific role in frontal lobe function, the role of striatal dopamine (DA) activity in performance on the WCST remains unclear. Methods: We assessed the relation between the availability of striatal dopamine transporters (DATs) and performance on the WCST as a measure of executive function in healthy individuals. We approximated the availability of DATs in 53 healthy volunteers aged 19-61 years by use of single photon emission computed tomography with technetium-99m (99mTc)-TRODAT-1 as the ligand. The WCST was administered to all participants. Results: The availability of DAT was significantly negatively correlated with perseverative errors on the WCST, both before and after adjustment for body mass index ( rbefore = -0.39, p = 0.004; rafter = -0.39, p= 0.005). Limitations: This was an association study; thus, a causal relation between DAT availability and performance cannot be confirmed. Conclusion: Our results suggest that striatal DAT availability may play a role in executive function as measured by the WCST.

Original languageEnglish
Pages (from-to)90-94
Number of pages5
JournalJournal of Psychiatry and Neuroscience
Volume35
Issue number2
DOIs
Publication statusPublished - 2010 Mar

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All Science Journal Classification (ASJC) codes

  • Psychiatry and Mental health
  • Biological Psychiatry
  • Pharmacology (medical)

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