AUDITORY EVENT RELATED POTENTIAL MEASURING SYSTEM, AUDITORY EVENT RELATED POTENTIAL MEASURING METHOD, AND COMPUTER PROGRAM FOR SAME

摘要

The invention provides art for suppressing fluctuations in auditory event related potential originating from variations in arousal, and measuring auditory event related potential with high accuracy in an auditory event related potential measuring system for hearing evaluations. This auditory event related potential measuring system includes: a video output unit that presents a video to a user; a biological signal measuring unit that measures the electroencephalogram signals of the user; an auditory stimulation scheduling unit that schedules the timing at which auditory stimulation is presented such that the auditory stimulation is presented while the video is presented to the user; an auditory stimulation output unit that presents the user with the auditory stimulation at the scheduled presentation timing; and an electroencephalogram processing unit that acquires, from the electroencephalogram signals, the event related potential in a first time range starting at the time when the auditory stimulation was presented. If the brightness variation amount of the output video exceeds a predetermined threshold, the auditory stimulation is not presented during a second time range starting at the time when the predetermined threshold was exceeded.