Method and system for detection of deception using scaled P300 scalp amplitude distribution

摘要

A method and system for testing for untruthfulness in a subject. In a testing session, at least one test stimulus is presented to the subject. The subject's brain waves are sensed from at least two locations of the subject's scalp to obtain a scaled distribution representing the subject's response to the at least one test stimulus. The distribution obtained in response to the test stimulus is compared to a similarly scaled control distribution of the subject's brain waves. The control distribution represents the brain waves sensed from the at least two locations of the subject's scalp in response to a control stimulus. The subject's truthfulness in response to the at least one test stimulus is inferred from the comparison.