Subjective significance evaluation tool, brain activity based

a sub-field and brain activity technology, applied in the field of subjective state determination, can solve the problems of large, expensive, non-mobile instruments, inability to get results within milliseconds resolution, etc., and achieve the effect of less precise results and great precision
US20080097235A1Inactive Publication Date: 2008-04-24TECHNION RES & DEV FOUND LTD

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
TECHNION RES & DEV FOUND LTD
Publication Date
2008-04-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method and system for determining the subjective state of mind of a human subject presented with a test audible or visual stimulus. An electroencephalogram (EEG) recording unit is connected to the human subject, recording the subject's EEG when presented with one or more test stimuli. The recorded EEG signal is then transformed to a 3-D map in order to visualize the brain areas that were active when presenting the test stimuli. The given 3-D map of the test stimuli is then compared with reference 3-D maps of neutral and subjectively significant stimuli.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to a method and system for determining the subjective state of mind of a human subject and in particular to assessment of neurophysiologic manifestations of subjective significance. BACKGROUND OF THE INVENTION

[0002] The neural substrates of emotional response have traditionally been studied using universal sets of emotionally loaded stimuli, regardless of their subjective significance to the individual subject. Assessment of the unique brain response to subjectively significant stimuli has not been studied before.

[0003] Deception is probably the best-studied mind states of all; most of the present lie-detection testing techniques use polygraph devices to examine the peripheral autonomic response to relevant versus irrelevant questions. Present day polygraph devices can combine measurements of electro-dermal skin conductance, blood pressure, respiration and peripheral vasomotor activity, minute changes in vocal response an...

Claims

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