PROBLEM TO BE SOLVED: To provide an apparatus capable of providing a subject's fatigue state, as a more accurate index, by using a signal obtained using biological light measurement.SOLUTION: An inquiry system comprises: a biological light measurement apparatus for measuring hemoglobin variations at a plurality of measurement points on a subject's head； an analysis apparatus for analyzing a biological light measurement result obtained by measurement of the biological light measurement apparatus； a display apparatus for displaying a result of analysis by the analysis apparatus； and an input apparatus for inputting information required for the analysis to the analysis apparatus. The analysis apparatus comprises a correlation determination unit that, by using hemoglobin variation waveforms obtained using the biological light measurement, calculates correlation between hemoglobin variation waveforms at the plurality of measurement points and counts the number of combinations of measurement points that have been determined to correlate with each other.SELECTED DRAWING: Figure 8【課題】生体光計測で得た信号を用いて、被検体の疲労状態を、より正確な指標として提供できる装置を提供する。【解決手段】問診システムは、被検体頭部の複数の測定点におけるヘモグロビン変化量を計測する生体光計測装置と、生体光計測装置で計測した生体光計測結果を解析する解析装置と、解析装置で解析した結果を表示する表示装置と、解析装置に解析に必要な情報を入力する入力装置とを備える。解析装置は、生体光計測で得られるヘモグロビン変化波形を用いて、複数の測定点のヘモグロビン変化波形の相関を算出し、相関があると算出された測定点の組の数をカウントする相関判定部を備える。【選択図】図８
