PROBLEM TO BE SOLVED: To provide a sleep state determination device and a sleep state determination method, capable of monitoring a pair of electro-oculograms, a brain wave, and an electromyogram while reducing the number of electrodes as compared with a conventional one.SOLUTION: A signal input/preprocessing unit 3 is constituted of two channels, each of which has paired electrodes 4, 5 and a filter. Paired electrodes 4a, 4b of a first channel are pasted on the vicinity of an eye ball and an ear or the like on the horizontally opposite side to the eye ball, respectively. Paired electrodes 5a, 5b of a second channel are pasted on the vicinity of the another eyeball and a jaw on the horizontally opposite side to the another eye ball, respectively. The signal input/preprocessing units part for the first channel separately outputs a first electro-oculogram and a brain wave obtained by at least cutting off a signal whose frequency is lower than 0.5 Hz. The signal input/preprocessing units part for the second channel separately outputs a second electro-oculogram and an electromyogram obtained by at least cutting off a signal whose frequency is lower than 10 Hz. The brain wave, first and second electro-oculograms, and electromyogram are contrast-displayed so as to be comparable with each other at each time.COPYRIGHT: (C)2015,JPO&INPIT【課題】電極の数を従来よりも減らしながら、一対の眼電図、脳波、筋電図をモニタすることの可能な睡眠状態判定装置及び判定方法を提供すること。【解決手段】信号入力・前処理部3は、2系統で、各チャンネルは一対の電極4,5とフィルタとを有する。第一チャンネルの一対の電極4a、4bを各々眼球の近傍及び当該眼球とは左右逆の耳等に貼り付け、第二チャンネルの一対の電極5a、5bを各々他方の眼球の近傍及び当該眼球とは左右逆の顎部に貼り付ける。第一チャンネルの信号入力・前処理部は、第一眼電図と、少なくとも0.5Hz未満の信号をカットすることにより得られる脳波とを分岐出力する。第二チャンネルの信号入力・前処理部は、第二眼電図と、少なくとも10Hz未満の信号をカットすることにより得られる筋電図とを分岐出力する。脳波、第一、第二眼電図及び筋電図を各時刻ごとに比較可能に対照表示させる。【選択図】図1
