PMID: 9190128Mar 1, 1997Paper

Changes in central motor-sensory system following voluntary movement of stimulated finger

The Journal of Sports Medicine and Physical Fitness
Yoshiaki NishihiraK Imanaka

Abstract

We examined which components of somatosensory evoked potentials (SEP) were modulated during the voluntary movement of stimulated fingers and discuss our findings with respect to the decrease in SEPs in terms of both centrifugal and centripetal mechanisms. The study was performed in the Laboratory of Physiology, Institute of Health and Sport Sciences, University of Tsukuba. Experiments were performed on 10 healthy young male subjects, aged 19-21 years. All subjects were right-handed and were free of neurological disease. We found that N20-P25 (P22 at frontal area) -N35-(N30 at frontal) P45 (P40 at frontal area) components at the F3, the C3' and the P3 were consistently evoked, but N35 was increased at P3 and N30 attenuation at F3 during a sustained voluntary movement. Furthermore, the present experiments showed that frontal N30 was markedly decreased during a sustained voluntary movement. We also found that all SEPs components, except for parictal N35, were significantly decreased during sustained voluntary movement tasks. We concluded that the suppression of SEPs appeared to be due to the interaction of both centrifugal and centripatal mechanisms. Namely, in a particular type of movement task, more prenounced afferent mechanism...Continue Reading

Related Concepts

Related Feeds

Barrel cortex

Here is the latest research on barrel cortex, a region of somatosensory and motor corticies in the brain, which are used by animals that rely on whiskers for world exploration.

Related Papers

Electroencephalography and Clinical Neurophysiology
I OzakiI Hashimoto
Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
A InsolaMassimiliano Valeriani
Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
A InsolaMassimiliano Valeriani
Nan fang yi ke da xue xue bao = Journal of Southern Medical University
Su-feng MengQi-ming Wang
Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
Takaaki MiuraTeruo Shimizu
© 2021 Meta ULC. All rights reserved