Predictors of HVOT performance in Parkinson's Disease

Christopher I. Higginson, Vicki L Wheelock, Dawn Levine, Conrad T E Pappas, Karen A. Sigvardt

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Evidence suggests that the Hooper Visual Organization Test (HVOT) has naming and executive components that vary in size depending on neurological diagnosis. The current study used a sample of individuals with Parkinson's disease (PD) to demonstrate for the first time that an executive measure can be the best predictor of HVOT performance. Forty-eight nondemented and nondepressed individuals with idiopathic PD completed the HVOT and other measures of visuoperception, executive function, and visual confrontation naming. Despite average performance on all neuropsychological measures, an executive measure, time to complete Trail-Making Test Part B minus time to complete Part A, was clearly the best predictor of HVOT performance in a standard regression. The pattern of neurocognitive predictors is unlike that reported in healthy individuals and other patient samples. This finding suggests that the presence of a neuropathological process can alter neurocognitive correlates even when performance is intact, and supports the contention that executive function is paramount in the cognitive profile associated with PD.

Original languageEnglish (US)
Pages (from-to)210-215
Number of pages6
JournalApplied Neuropsychology
Volume18
Issue number3
DOIs
StatePublished - Jul 2011

Keywords

  • confrontation naming
  • executive function
  • Parkinson's disease
  • visuoperception

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology

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    Higginson, C. I., Wheelock, V. L., Levine, D., Pappas, C. T. E., & Sigvardt, K. A. (2011). Predictors of HVOT performance in Parkinson's Disease. Applied Neuropsychology, 18(3), 210-215. https://doi.org/10.1080/09084282.2011.595447