Articles

Noninvasive near‐infrared topography of human brain activity using intensity modulation spectroscopy

[+] Author Affiliations
Yoshitoshi Ito

Hitachi Ltd. Central Research Laboratory Kokubunji, Tokyo 185, Japan

Yoshiaki Mayanagi

Tokyo Metropolitan Police Hospital Department of Neurosurgery Tokyo 102, Japan

Hideaki Koizumi

Hitachi Ltd. Central Research Laboratory Kokubunji, Tokyo 185, Japan ?

Opt. Eng. 35(4), 1046-1049 (Apr 01, 1996). doi:10.1117/1.600721
History: Received June 8, 1995; Revised Oct. 6, 1995; Accepted Oct. 18, 1995
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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. © 1996 Society of Photo−Optical Instrumentation Engineers.


Citation

Yuichi Yamashita ; Atsushi Maki ; Yoshitoshi Ito ; Eiju Watanabe ; Yoshiaki Mayanagi, et al.
"Noninvasive near‐infrared topography of human brain activity using intensity modulation spectroscopy", Opt. Eng. 35(4), 1046-1049 (Apr 01, 1996). ; http://dx.doi.org/10.1117/1.600721


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