Subjective significance evaluation tool, brain activity based
AssigneeEinat Ofek
InventorsEinat Ofek, Hillel Pratt
Life of this 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 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.
Claims18
A method of assessing a subjective significance of a given stimulus to a subject, said method comprising:
- exposing the subject to a plurality of given stimuli;
- during or after the exposing to the plurality of given stimuli, utilizing at least one electric sensor to detect brain activity within at least one brain area of the subject;
- using a computer unit to receive detected brain activity patterns and analyzing the detected brain activity patterns;
- comparing the detected brain activity patterns to an at least one reference pattern associated with a subjective significance stimulus brain responses of the subject, wherein the at least one reference pattern is characterized by brain activation patterns within areas on either hemisphere;
- determining whether the at least one reference pattern is identified in the detected brain activity patterns responsive to a given stimulus of the plurality of given stimuli;
- determining whether the given stimulus is subjectively significant to the subject based on the identifying of the at least one reference pattern in the detected brain activity patterns;
- and
- comparing detected brain activity patterns responsive to different stimuli to each other, wherein a first stimulus that induces a stronger brain activation than a second stimulus is identified as being more subjectively significant than the second stimulus.
Dependencies are inferred from the claim text.