Journal article
Optimising verbal fluency analysis in neurological patients with dysarthria: examples from Parkinson’s disease and hereditary ataxia
Y Li, J Yang, K Evans, J Bow-Wah Wong, NN Dissanayaka, AP Vogel
Journal of Clinical and Experimental Neuropsychology | Published : 2023
Abstract
Background: Verbal fluency tests (VFTs) are widely used to assess cognitive-linguistic performance in neurological diseases. However, the influence of dysarthria on performance in tests requiring oral responses is unclear in ataxia and Parkinson’s disease. Objectives: To determine the impact of dysarthria on VFT performance and evaluate the validity and reliability of alternative methods for analyzing VFT data. Method: Trained raters evaluated dysarthria using VFT recordings in people with ataxia (N = 61) or Parkinson’s disease (PD; N = 69). Total Correct Items scores and qualitative parameters (intrusions, ambiguous verbalizations, perseverations, and interjections) were compared across sem..
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Awarded by National Health and Medical Research Council
Funding Acknowledgements
We thank all participants of the study, the Royal Brisbane and Women & apos;s Hospital Foundation for funding the original PD-MCI project in Queensland, and the core research team of the PD-MCI project including Professor Gerard Byrne, Professor David Copland, Dr Leander Mitchell, A/Prof John O'Sullivan and Professor Katie McMahon. A/Prof Dissanayaka is supported by the National Health and Medical Research Boosting Dementia Research Leadership Fellowship.