Method and system for detection of deception using scaled P300 s

Details Method and system for detection of deception using scaled P300 s Method and system for detection of deception using scaled P300 s

1997-07-28

1999-09-28

Manuel, George

Surgery

Diagnostic testing

Detecting brain electric signal

128898, A61B 504

Patent

active

059578599

ABSTRACT:
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.

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J.W. Ellwanger et al., Revised, Combined Oddball and Matching-To-Sample Procedure for Detection of Simulated Cognitive Deficit with P300: Deception-Specific Amplitude Distributions; SPR meeting, Oct. 1996.

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