Perceived and performance-based executive dysfunction in Parkinsons disease

Kimberly E. Lanni, Jessica M. Ross, Christopher I. Higginson, Elizabeth M. Dressler, Karen A. Sigvardt, Lin Zhang, Norika O Malhado-Chang, Elizabeth A. Disbrow

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Executive dysfunction is common in early stage Parkinsons disease (PD). We evaluated the relationship between self-and informant-report measurement of real-world executive functions as well as performance-based neuropsychological measures in mildly cognitively impaired individuals with PD and healthy controls. The PD group reported more difficulty with initiation of complex tasks compared to caregiver ratings, and processing speed was a strong predictor of self-reported executive dysfunction for the PD group, followed by depression. Processing speed and semantic verbal fluency predicted informant-reported executive dysfunction in PD. These findings highlight the contribution of speeded processing for performance of everyday executive tasks in PD.

Original languageEnglish (US)
Pages (from-to)342-355
Number of pages14
JournalJournal of Clinical and Experimental Neuropsychology
Issue number4
StatePublished - Apr 21 2014


  • Behavior Rating Inventory of Executive Function-Adult Version
  • Depression
  • Executive functions
  • Processing speed
  • Ratings

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Clinical Psychology


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