Evaluation of a subject's interest in education, training and other materials using brain activity patterns
First Claim
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1. A method comprising:
- presenting aperiodically during a baseline period first and second stimuli to a subject that was previously instructed to ignore said first and second stimuli, said second stimuli being presented less frequently than said first stimuli;
obtaining from said subject during said baseline period first brain signals proximate in time with said second stimuli;
determining the magnitude of said first brain signals;
presenting to said subject task stimuli during a task period and aperiodically presenting to said subject first and second stimuli during said task period, wherein said subject was instructed prior to said task period to ignore said first and second stimuli and to pay attention to but not respond to said task stimuli;
obtaining from said subject during said task period second brain signals proximate in time with said second stimuli;
determining the magnitude of said second brain signals; and
comparing the difference in magnitude of said first and second brain signals.
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Abstract
The objective evaluation of a subject'"'"'s interest in specific information, such as education and training materials, for example, is made possible by using patterns of physiological activity generated in the brain. Samples of individual brain activity are obtained to assess whether an individual is paying attention and showing interest in certain materials. Effectiveness in presenting such materials would be improved when direct brain recording activity shows increased interest in the presented material.
232 Citations
24 Claims
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1. A method comprising:
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presenting aperiodically during a baseline period first and second stimuli to a subject that was previously instructed to ignore said first and second stimuli, said second stimuli being presented less frequently than said first stimuli; obtaining from said subject during said baseline period first brain signals proximate in time with said second stimuli; determining the magnitude of said first brain signals; presenting to said subject task stimuli during a task period and aperiodically presenting to said subject first and second stimuli during said task period, wherein said subject was instructed prior to said task period to ignore said first and second stimuli and to pay attention to but not respond to said task stimuli; obtaining from said subject during said task period second brain signals proximate in time with said second stimuli; determining the magnitude of said second brain signals; and comparing the difference in magnitude of said first and second brain signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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presenting aperiodically during a baseline period first and second audio stimuli to a subject that was previously instructed to ignore said first and second audio stimuli, said second audio stimuli being presented less frequently than said first audio stimuli; obtaining from said subject during said baseline period first brain signals proximate in time with said second audio stimuli; determining the magnitude of said first brain signals; presenting to said subject video stimuli during a task period and aperiodically presenting to said subject first and second audio stimuli during said task period, wherein said subject was instructed prior to said task period to ignore said first and second audio stimuli and pay attention to but not respond to said video stimuli; obtaining from said subject during said task period second brain signals proximate in time with said second audio stimuli; determining the magnitude of said second brain signals; and comparing the difference in magnitude of said first and second brain signals. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification
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Current Assigneethe united states of america as represented by the secretary of the navy
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Original Assigneethe united states of america as represented by the secretary of the navy
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InventorsRyan-Jones, David L., Lewis, Gregory W.
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Primary Examiner(s)Bahr, Jennifer
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Assistant Examiner(s)Ruddy, David M.
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Application NumberUS08/748,224Time in Patent Office574 DaysField of Search600/544, 600/545, 600/26-28, 600/558US Class Current600/544CPC Class CodesA61B 5/16 Devices for psychotechnics ...A61B 5/377 using evoked responses
