PROBLEM TO BE SOLVED: To provide a biological signal detection device capable of detecting a signal suitable for measuring a brain wave and a brain wave measurement method using such a signal detection.SOLUTION: A biological signal detection device 10 includes: a reference electrode 51 configured so as to be arranged in a part of a region consisting of a recess of the auricle and the external acoustic meatus and a detection electrode 52 configured so as to come in contact with the skin on the temporal bone behind the auricle. The biological signal detection device 10 includes a signal processing part for outputting a signal on the basis of an electric potential of the reference electrode 51 and an electric potential of the detection electrode 52.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】脳波の測定に適した信号を検出できる生体信号検出装置、および、こうした信号の検出を利用した脳波測定方法を提供する。【解決手段】生体信号検出装置10は、耳介の窪みおよび外耳道からなる領域の一部に配置されるように構成された基準電極51と、耳介の後方にて側頭骨上の皮膚に接するように構成された検出電極52とを備える。そして、生体信号検出装置10は、基準電極51の電位と、検出電極52の電位とに基づく信号を出力する信号処理部を備える。【選択図】図1
