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APPARATUS, METHOD, AND COMPUTER PROGRAM FOR ADJUSTMENT OF ELECTROENCEPHALOGRAMS DISTINCTION METHOD

  • US 20090247895A1
  • Filed: 11/14/2007
  • Published: 10/01/2009
  • Est. Priority Date: 11/15/2006
  • Status: Abandoned Application
First Claim
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1. An adjustment apparatus used for adjusting a distinction method in an electroencephalogram interface section in an electroencephalogram interface system, the electroencephalogram interface system including:

  • an output section for, based on data of a content, presenting the content to a user;

    a biological signal measurement section for acquiring an electroencephalogram signal from the user; and

    the electroencephalogram interface section for distinguishing a request of the user based on the electroencephalogram signal and identifying a function which is in accordance with the request,wherein the apparatus comprises;

    an analysis section for measuring and analyzing a physical quantity corresponding to a visual and/or auditory stimulation given to the user, the physical quantity being measured and analyzed as a characteristic quantity of the stimulation, and for detecting a change in the characteristic quantity of the stimulation that affects an event-related potential contained in the electroencephalogram signal, thus detecting a change in the stimulation;

    a storage section for storing a waveform of the event-related potential during a predetermined period at least spanning after a starting point which is a point in time when the change in the stimulation is detected;

    a user characteristic extraction section for extracting a characteristic quantity of the user based on the stored waveform of the event-related potential; and

    a distinction method adjustment section for, based on the extracted characteristic quantity of the user, adjusting in the electroencephalogram interface section the distinction method for a request based on the electroencephalogram signal.

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