Journal
VISION RESEARCH
Volume 45, Issue 10, Pages 1285-1296Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.visres.2004.11.006
Keywords
Parkinson's disease; vision; spatial; hallucinations; freezing of gait
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Funding
- NIA NIH HHS [R01 AG15361] Funding Source: Medline
- NINDS NIH HHS [R21 NS 04370] Funding Source: Medline
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The interaction of visual/visuospatial and motor symptoms in Parkinson's disease (PD) was investigated by means of a 31-item self-report questionnaire. The majority of 81 non-demented patients reported problems on non-motor tasks that depended on visual or visuospatial abilities. Over a third reported visual hallucinations, double vision and difficulty estimating spatial relations. Freezing of gait was associated with visual hallucinations, double vision and contrast sensitivity deficits. Visual strategies frequently were employed to overcome freezing. The results underscore the importance of investigating visual and visuospatial impairments in PD and their relation to motor symptoms, in order to help patients develop successful compensatory strategies. (c) 2004 Elsevier Ltd. All rights reserved.
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