The contribution of trail making to the prediction of performance-based instrumental activities of daily living in Parkinson's disease without dementia

Christopher I. Higginson, Kimberly Lanni, Karen A. Sigvardt, Elizabeth A. Disbrow

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Performance on Part B of the Trail Making Test (TMT) contributes to the prediction of ability to complete instrumental activities of daily living (IADLs) in Parkinson's disease (PD). Although this suggests that cognitive flexibility is important in the everyday functioning of individuals with PD, this may not be the case as the TMT is multifactorial, involving motor speed, visual scanning, sequencing, and cognitive flexibility. The purpose of the current study was to determine which elements of the task contribute to the prediction of IADLs in a sample of 30 nondemented individuals with PD. Correlational analyses indicated strong relationships between a performance-based measure of IADLs and measures involving scanning, sequencing, and cognitive flexibility from the Delis-Kaplan Executive Function System (D-KEFS) TMT. Results from standard regressions indicated that measures of sequencing and level of depression but not scanning, cognitive flexibility, or demographic variables made a significant, independent contribution to the prediction of IADLs. These results suggest that the sequencing element of the TMT is paramount in the prediction of IADLs in PD.

Original languageEnglish (US)
Pages (from-to)530-539
Number of pages10
JournalJournal of Clinical and Experimental Neuropsychology
Volume35
Issue number5
DOIs
StatePublished - Jun 1 2013

Keywords

  • Cognitive flexibility
  • Instrumental activities of daily living
  • Parkinson's disease
  • Trail making

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Clinical Psychology

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