Confirmation of Common-sense Measurement Conditions and Methods for Using f-NIRS

Abstract

The f-NIRS is becoming widespread by progress in cost reduction, downsizing, and portability of the measuring equipment. On the other hand, in several research reports, we can easily find a lack of uniformity in using and the fact that each of the experimenter proceeded in one's own way. Thus, we verified how those differences affect to results in the sense of reconfirmation about various measurement conditions and methods that are common-sense in the f-NIRS measurement; for example, a time length of a rest for a task, a presence or absence of binding the cables of probes, and so on. And we conducted comparative evaluation of the results due to formal or informal analysis methods. With reporting their results, we felt about necessity of a certain rules and proficiency skills in the use of f-NIRS.