Tsuyoshi Yamamoto

TL;DR: The concept of noninvasive trans-cranial dynamic optical topography and its instrumentation is described and the validity of this method is confirmed after it was applied to a wide variety of fields such as clinical medicine, cognitive science, and linguistics.

TL;DR: 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 in observations of higher-order brain functions.

TL;DR: For the first time, it is demonstrated that the LPFC of preschoolers is active during working memory processes, indicating that in 5- and 6-year-old children, theLPFC has already developed processing of this important cognitive function.

TL;DR: A distribution of sensitivity is obtained from the phantom experiment, and used to reconstruct topographical images of an activation area of the brain with the fibres in each arrangement, and the effective arrangement of the optical fibres for improved resolution is discussed.

TL;DR: An optical measuring apparatus for optically measuring a sample includes a plurality of parts for applying light beams to the sample, a plurality for detecting light beams from the light applying parts which come through the sample and a memory part which receives signals from the detecting parts, converts them into digital signals and stores the digital signals as measuring positions between the light applied part and the light detecting part.