Visuo-spatial processing in Parkinson's disease: Evidence for diminished visuo-spatial sketch pad and central executive resources
(2005) Parkinsonism & Related Disorders — Vol. 11, n° 3, p. 181-186 (2005)
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- Abstract
- A dual-task study compared the visuo-spatial sketch pad and central executive components of working memory as potential cognitive mechanisms of visuo-spatial dysfunction in Parkinson's disease. Mildly to moderately affected Parkinsonian patients (n=15) and controls (n=15) performed the Corsi blocks task concurrently with tasks designed to load on the visuo-spatial sketch pad (spatial tapping) or the central executive (random interval repetition). Patients performed more poorly in both concurrent task conditions, implicating a reduction in both visuo-spatial sketch pad and central executive resources. The impact of the concurrent tasks varied with disease severity, with the central executive deficit prominent at disease onset, but the visuo-spatial sketch pad deficit becoming apparent only in the moderate stages of the illness. © 2004 Elsevier Ltd. All rights reserved.
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Citations
Kemps, E., Szmalec, A., Vandierendonck, A., & Crevits, L. (2005). Visuo-spatial processing in Parkinson’s disease: Evidence for diminished visuo-spatial sketch pad and central executive resources. Parkinsonism & Related Disorders, 11(3), 181-186. https://doi.org/10.1016/j.parkreldis.2004.10.010 (Original work published 2005)