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The impact of oculomotor functioning on neuropsychological performance in Huntington disease
Journal article   Open access   Peer reviewed

The impact of oculomotor functioning on neuropsychological performance in Huntington disease

Janessa O Carvalho, Jeffrey D Long, Holly J Westervelt, Megan M Smith, Jared M Bruce, Ji-In Kim, James A Mills, Jane S Paulsen and PREDICT-HD Investigators and Coordinators of the Huntington Study Group
Journal of clinical and experimental neuropsychology, Vol.38(2), pp.217-226
02/07/2016
DOI: 10.1080/13803395.2015.1101054
PMCID: PMC8091165
PMID: 26745770
url
https://www.ncbi.nlm.nih.gov/pmc/articles/8091165View
Open Access

Abstract

Huntington disease (HD) is a neurodegenerative condition with prominent motor (including oculomotor), cognitive, and psychiatric effects. While neuropsychological deficits are present in HD, motor impairments may impact performance on neuropsychological measures, especially those requiring a speeded response, as has been demonstrated in multiple sclerosis and schizophrenia. The current study is the first to explore associations between oculomotor functions and neuropsychological performance in HD. Participants with impaired oculomotor functioning performed worse than those with normal oculomotor functioning on cognitive tasks requiring oculomotor involvement, particularly on psychomotor speed tasks, controlling for covariates. Consideration of oculomotor dysfunction on neuropsychological performance is critical, particularly for populations with motor deficits.
Neuropsychology PREDICT-HD oculomotor functioning Huntington disease processing speed

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