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Optical Engineering

Noninvasive near-infrared topography of human brain activity using intensity modulation spectroscopy
Author(s): Yuichi Yamashita; Atsushi Maki; Yoshitoshi Ito; Eiju Watanabe; Yoshiaki Mayanagi; Hideaki Koizumi
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Paper Abstract

We describe the functional topography of human brain activity due to motor stimulation by using near-infrared spectroscopy. Finger motion by each hand was used as the motor stimulation, and activity in the left fronto-central region of the brain was measured. A greater change in oxyhemoglobin concentration due to brain activity during the stimulation was obtained for the right hand than for the left hand. Localization of the activity was obtained by topographically mapping the measured changes for ten positions within the region.

Paper Details

Date Published: 1 April 1996
PDF: 4 pages
Opt. Eng. 35(4) doi: 10.1117/1.600721
Published in: Optical Engineering Volume 35, Issue 4
Show Author Affiliations
Yuichi Yamashita, Hitachi Ltd. (Japan)
Atsushi Maki, Hitachi Ltd. (Japan)
Yoshitoshi Ito, Hitachi Ltd. (Japan)
Eiju Watanabe, Tokyo Metropolitan Police Hsp. (Japan)
Yoshiaki Mayanagi, Tokyo Metropolitan Police Hsp. (Japan)
Hideaki Koizumi, Hitachi Ltd. (Japan)


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