Optical topography: practical problems and new applications

被引：115

作者：

Koizumi, H ^{[1
]}

Yamamoto, T

Maki, A

Yamashita, Y

Sato, H

Kawaguchi, H

Ichikawa, N

机构：

[1] Hitachi Ltd, Adv Res Lab, Hatoyama, Saitama 3500395, Japan

[2] Hitachi Med Corp, Kashiwa, Chiba 2778678, Japan

来源：

APPLIED OPTICS | 2003年 / 42卷 / 16期

关键词：

D O I：

10.1364/AO.42.003054

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We will briefly review the present status of optical topography and then discuss the method of improving practicality, i.e., the signal-to-noise (SIN) ratio and the spatial resolution in observations of higher-order brain functions. The optimum wavelength pair improved the SIN 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. (C) 2003 Optical Society of America.

引用

页码：3054 / 3062

页数：9

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