Title :
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
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;
Conference_Titel :
Biomedical Engineering., Proceedings of a Special Symposium on Maturing Technologies and Emerging Horizons in
Conference_Location :
New Orleans, LA
DOI :
10.1109/MTEHBE.1988.26382
