Patent ID: 8521271

Claim:
In an electroencephalogram interface system having an output section configured to visually present a manipulation menu for a device and to present a non-visual stimulation to a modality other than the visual sense, a biological signal measurement section configured to acquire an electroencephalogram signal from a user, and an electroencephalogram interface section configured to distinguish, by using a prestored parameter of visual event-related potential, a P3 component of a visual event-related potential contained in an electroencephalogram signal after the manipulation menu is presented, and to operate the device based on the distinguished P3 component, an electroencephalogram distinction method adjustment apparatus to be used for adjusting a distinction method in the electroencephalogram interface section, comprising: a database defining a correlation between a P3 component of an event-related potential obtained from a stimulation to a modality other than the visual sense and a P3 component of a visual event-related potential; a stimulation presentation section configured to present the non-visual stimulation via the output section; an analysis section configured to analyze an event-related potential contained in the electroencephalogram signal after the non-visual stimulation is presented; and a distinction method adjustment section configured to derive at least one of an amplitude and a latent period of a P3 component as a characteristic quantity of the user concerning the P3 component of a visual event-related potential based on a P3 component of the analyzed event-related potential from the non-visual stimulation and the correlation in the database, and to adjust the electroencephalogram distinction method in the electroencephalogram interface section based on the characteristic quantity.