Abstract
Somatosensory evoked potentials (SSEP) elicited by electrical stimulation of the median nerve were compared in patients with Parkinson's disease and individuals without clinical manifestations of extrapyramidal insufficiency (46 and 55 persons, respectively). The amplitude of the N31 component was found to diminish in Parkinsonian patients while the latency of the P44 component increased significantly. In addition, these parameters depended on the age of the tested subjects; the direction of age-related changes of the N31 and P44 components coincided with those typical of parkinsonism. Our findings seem to suggest that changes in the somatic afferentation caused by Parkinson's disease and aging are of the same type and depend on disturbances in the nigrostriatal dopaminergic system.
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Neirofiziologiya/Neurophysiology, Vol. 26, No. 3, pp. 141–145, March–April, 1994.
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Garkavenko, V.V., Karaban', I.N., Voloshin, M.Y. et al. Parkinson's disease and aging: Changes of somatosensory evoked potentials in humans. Neurophysiology 26, 114–118 (1994). https://doi.org/10.1007/BF01053088
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DOI: https://doi.org/10.1007/BF01053088