NDLI: Contrast grating sensitivity and visual evoked potentials in parkinsonian patients

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Contrast grating sensitivity and visual evoked potentials in parkinsonian patients

Content Provider	Scilit
Author	Herishanu, Yuval O. Louzoun, Zeev Garlik, Talma
Copyright Year	1986
Description	Journal: Neuro-Ophthalmology Contrast grating sensitivity to horizontal and vertical sinegratings was measured in parkinsonian patients and compared with matched healthy controls. The patients did not detect the bars with a high spatial frequency (31 cpd) and showed a very high contrast threshold for all the spatial frequencies tested. Visual evoked potentials to horizontal sinegratings (3, 6 and 16 cpd) with different contrasts (subliminal and above the contrast threshold) and to high contrast checkerboard were also measured and showed significant prolongation of the P-100 latencies in the parkinsonian patients. Our study emphasizes the subclinical visual system abnormalities in this condition.
Related Links	http://www.tandfonline.com/doi/pdf/10.3109/01658108608997324
Ending Page	48
Page Count	6
Starting Page	43
ISSN	01658107
e-ISSN	1744506X
DOI	10.3109/01658108608997324
Journal	Neuro-Ophthalmology
Issue Number	1
Volume Number	6
Language	English
Publisher	Informa UK Limited
Publisher Date	1986-01-01
Access Restriction	Open
Subject Keyword	Journal: Neuro-Ophthalmology Biological Psychology Prolongation Abnormalities Parkinsonian Patients
Content Type	Text
Subject	Ophthalmology Neurology (clinical)

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