Patent ID: 8271076

Claim:
A correction apparatus to be incorporated in an electroencephalogram interface system, the electroencephalogram interface system including: a biological signal measurement section for measuring and storing an electroencephalogram signal of a user, an analysis section for analyzing an event-related potential contained in the electroencephalogram signal, an inference section for inferring an option which is desired by the user based on a result of analysis by the electroencephalogram analysis section, and an output section for presenting the option inferred by the inference section to the user, the biological signal measurement section configured for measuring the electroencephalogram signal of the user based on a point of presenting the option to the user as a starting point, wherein, the correction apparatus comprises a processor device that includes: a determination section configured to determine correctness of the inferred option based on an event-related potential contained in the electroencephalogram signal acquired after inference of the option; and a correction section configured to, when the inferred option is determined to be incorrect, correct the inferred option based on the event-related potential which was used for inference of the option, and designate a device operation based on the option after correction.