Visual evoked potentials and pattern electroretinograms in Parkinson's disease and control subjects.
نویسندگان
چکیده
منابع مشابه
Visual evoked cortical potentials and pattern electroretinograms in Parkinson's disease and control subjects.
Parkinson's disease patients have been shown to have abnormal visually evoked cortical potentials (VEPs) to pattern stimulation. Whereas dopamine is not an important neurotransmitter in the central visual pathways, the retina is rich in dopamine and, together with previous animal and human studies, this suggests that the abnormal VEPs in Parkinson's disease patients may be due to a biochemical ...
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Sixteen normal subjects and three patients with optic neuritis were studied to determine the effect of decreased retinal illumination on simultaneously recorded pattern electroretinograms (PERG) and visual-evoked potentials (VEP). Using neutral-density filters (NDF), it was found that linear modeling is an excellent fit for VEP/PERG amplitudes and latencies as log functions of retinal illuminat...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1987
ISSN: 0022-3050
DOI: 10.1136/jnnp.50.9.1243