Dopaminergic deficiency and delayed visual evoked potentials in humans
- 1 May 1982
- journal article
- research article
- Published by Wiley in Annals of Neurology
- Vol. 11 (5) , 478-483
- https://doi.org/10.1002/ana.410110507
Abstract
Abnormal delay in visual evoked potential (VEP) could be normalized in 9 of 14 previously untreated parkinsonian patients under the influence of levodopa/carbidopa therapy. In 6 of 11 previously untreated schizophrenic patients the VEP latency became abnormal following therapy with agents known to cause dopaminergic blockade. Besides defects in retrobulbar conduction secondary to demyelination, synaptic dysfunction due to neurotransmitter deficiency or receptor blockade must also be considered as a mechanism underlying VEP delays in humans.Keywords
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