On the possible role of temporal delays of afferent processing in Parkinson's disease
Bodis-Wollner, I.; Harnois, C.; Bobak, P.; Mylin, L.
Journal of Neural Transmission. Supplementum 19: 243-252
1983
ISSN/ISBN: 0303-6995 PMID: 6321648 Document Number: 202047
Visual evoked potential (VEP) latency is one measure of afferent delays in Parkinson's disease. New aspects of temporal processing were studied in the VEP of 7 patients and 10 normals. For this analysis the patterned stimulus was simultaneously modulated at two temporal frequencies. Phase shifts of non-linear VEP components in patients, compared to normals, revealed that an abnormality of temporal processing in this disease must be caused by altered neuronal interactions, not only by simple conduction defects.