Basic mechanisms of magnetic coil excitation of nervous system in humans and monkeys and their applications

Author

Amassian, Vahe E. ; Cracco, Roger Q. ; Maccabee, Paul J.

Author_Institution

Dept. of Physiol. & Neurology, State Univ. of New York Health Sci. Center, Brooklyn, NY, USA

fYear

1988

fDate

4-7 Nov 1988

Firstpage

10

Lastpage

17

Abstract

Conclusions from studies utilizing the human peripheral nerve as a model system in developing the optimal magnetic coil (MC) orientation for focal stimulation were applied to the human cerebral cortex. The theoretical predictions were validated by direct recording from corticospinal neurons in the monkey. Appropriate MC orientation over the cerebral cortex elicits: (1) minimal central motor delays; (2) movements of individual digits; (3) a sense of movement in a paralyzed arm; (4) laryngeal muscle excitation from frontal areas related to speech; (5) suppression of visual perception when the MC is over the visual cortex; and (6) transcallosal responses in the opposite hemisphere

Keywords

biomagnetism; neurophysiology; central motor delays; corticospinal neurons; digits; focal stimulation; human cerebral cortex; laryngeal muscle excitation; magnetic coil excitation; monkeys; nervous system excitation; paralyzed arm; speech; transcallosal responses; visual perception; Brain modeling; Cerebral cortex; Coils; Delay; Humans; Magnetic recording; Muscles; Nervous system; Neurons; Speech;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering., Proceedings of a Special Symposium on Maturing Technologies and Emerging Horizons in

Conference_Location

New Orleans, LA

Type

conf

DOI

10.1109/MTEHBE.1988.26382

Filename

26382