Mental-concentration measuring method and apparatus
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United States of America Patent
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Oct 24, 1995
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N/A
app pub date -
Aug 13, 1993
filing date -
Aug 19, 1992
priority date (Note) -
Expired
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Abstract
A mental-concentration measuring method for measuring the degree of mental concentration of a subject by extracting a power spectrum with respect to a brain wave from detected brain-wave biological signals, obtaining an integrated value of the power spectrum and an integrated value of a rhythm spectrum representing mental concentration power, and measuring the mental concentration of the subject based on the ratio of these integrated values, and mental-concentration measuring apparatus as apparatus for realizing the above method comprising a brain-wave extracting device for extracting a power spectrum of a brain wave, a brain-wave spectrum integrating device for integrating the brain-wave power spectrum extracted by the brain-wave extracting device, an .alpha.-rhythm spectrum integrating device for integrating an .alpha.-rhythm spectrum representing mental concentration power, and a mental-concentration calculating device for calculating the ratio of the integrated value obtained with the .alpha.-rhythm spectrum integrating device and the integrated value obtained with the brain-wave spectrum integrating device.
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