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Visualizing the Next Steps in Parkinson Disease
Arch Neurol. 2002;59:1233-1234.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings. |
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MOST OF OUR DAILY activities are effortless, but they require an interplay
of sensory inputs and cognitive strategies. Getting out of bed, finding your
glasses, putting them on, charting and finding a path between the obstacles
on the ground left there accidentally, and going to the bathroom need more
than good movements, particularly at night, when the visual input is impoverished.
When you ask patients with Parkinson disease (PD) to close their eyes and
continue with the previously executed rhythmic movement, such as moving their
finger to and fro between your 2 outstretched arms, they will stop after the
first few movements, as if frozen. Normally, healthy people can continue to
walk for seconds even with closed eyes along a path they have taken. Apparently,
in healthy people a visual map persists for several seconds and helps to guide
locomotion. Parkinsonian patients may freeze in their walk even with open
. . . [Full Text of this Article]
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