Optical topography: Practical problems and new applications

Hideaki Koizumi; Tsuyoshi Yamamoto; Atsushi Maki; Yuichi Yamashita; Hiroki Sato; Hideo Kawaguchi; Noriyoshi Ichikawa

doi:10.1364/AO.42.003054

Optical topography: Practical problems and new applications

Hideaki Koizumi, Tsuyoshi Yamamoto, Atsushi Maki, Yuichi Yamashita, Hiroki Sato, Hideo Kawaguchi, Noriyoshi Ichikawa

Research output: Contribution to journal › Article › peer-review

141 Citations (Scopus)

Abstract

We will briefly review the present status of optical topography and then discuss the method of improving practicality, i.e., the signal-to-noise (S/N) ratio and the spatial resolution in observations of higher-order brain functions. The optimum wavelength pair improved the (S/N)ratio sixfold for deoxyhemoglobin, and new configurations of light irradiation and detection positions doubled the spatial resolution. We also report on developing application fields of optical topography. This modality will bridge the gap between natural sciences, neuroscience, and pedagogy, and show actual real-time brain activity.

Original language	English
Pages (from-to)	3054-3062
Number of pages	9
Journal	Applied Optics
Volume	42
Issue number	16
DOIs	https://doi.org/10.1364/AO.42.003054
Publication status	Published - 2003 Jun 1
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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AU - Sato, Hiroki

AU - Kawaguchi, Hideo

AU - Ichikawa, Noriyoshi

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Optical topography: Practical problems and new applications

Abstract

ASJC Scopus subject areas

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