Impaired decision-making in Parkinson's disease

Masaru Mimura, Reiko Oeda, Mitsuru Kawamura

Research output: Contribution to journalArticlepeer-review

166 Citations (Scopus)


The present study demonstrated that individuals with Parkinson's disease display impairments in making profitable decisions, as evidenced by poorer performance on the Iowa Gambling Task relative to matched controls. The ability to make beneficial judgments solely correlates with ability to appropriately attribute internal mental-state to other people, as shown in a mind-reading task. However, decision-making ability for individuals with Parkinson's disease is not associated with effective execution, intellectual function or depressed mood. These findings offer a new perspective on the cognitive impairments that affect social living and adaptive decisions for individuals with Parkinson's disease.

Original languageEnglish
Pages (from-to)169-175
Number of pages7
JournalParkinsonism and Related Disorders
Issue number3
Publication statusPublished - 2006 Apr
Externally publishedYes


  • Decision-making
  • Executive function
  • Mind-reading
  • Parkinson's disease
  • Social cognition

ASJC Scopus subject areas

  • Neurology
  • Geriatrics and Gerontology
  • Clinical Neurology


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