Optical topography: practical problems and new applications.

  title={Optical topography: practical problems and new applications.},
  author={Hideaki Koizumi and Tsuyoshi Yamamoto and Atsushi Maki and Yuichi Yamashita and Hiroki Sato and Hideo Kawaguchi and Noriyoshi Ichikawa},
  journal={Applied optics},
  volume={42 16},
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… CONTINUE READING

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