PROBLEM TO BE SOLVED: To provide a brain wave measurement device capable of easily and safely measuring a brain wave, and easily determining a risk of dementia when determining a risk of dementia by measuring a brain wave.SOLUTION: A brain wave measurement device 1 includes a body 5 equipped with a measurement part 7 and a connector 8 for outputting a brain wave signal to an external device, and a reference electrode 32 that can be brought into contact with a portion where a potential signal, which is a reference in the measurement of an activation brain wave of a subject, can be acquired. The measurement part 7 includes engagement parts disposed at positions corresponding to the midline frontal region (Fz) and the midline central region (Cz) of the subject which electrode members having conductivity are attached to and detached from, and a print wiring part 10 for electrically connecting each engagement part and the connector 8.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】脳波計測によって認知症のリスクを判定するにあたり、脳波計測を容易かつ安全に行なうことができるとともに、認知症のリスク判定も容易に行える脳波計測装置を提供する。【解決手段】本発明の脳波計測装置1は、測定部7と外部装置に対して脳波信号を出力するコネクタ8とを備えた本体5と、被験者の賦活脳波の計測に際して基準となる電位信号を取得可能な部分に当接可能な基準電極32とを有する。そして、測定部7は、被験者の正中前頭部(Fz)、及び、正中中心部(Cz)に対応した位置に配設され、導電性を有する電極部材が着脱される係合部と、各係合部とコネクタ8を電気的に接続するプリント配線部10と、を有する。【選択図】 図3
