Concentration presence/absence determining device and content evaluation apparatus
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsMototaka Yoshioka, Jun Ozawa
Life of this patent
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Abstract
A concentration presence/absence determining device includes: a brain blood flow volume obtaining unit configured to obtain a brain blood flow volume of the user; a varying threshold obtaining unit configured to obtain a varying threshold that is a value smaller than the brain blood flow volume of the user at a base time; and an determining unit configured to determine that the user concentrates, when the brain blood flow volume obtained by the brain blood flow volume obtaining unit falls below the varying threshold obtained by the varying threshold obtaining unit.
Claims23
A concentration presence/absence determining device that determines whether or not a user is concentrating, the concentration presence/absence determining device comprising:
- a near-infrared spectroscopy sensor which senses a plurality of values of a hemoglobin state in brain blood of the user;
- a processor;
- and
- a non-transitory computer-readable recording medium having stored thereon executable instructions, which when executed by the processor, cause the concentration presence/absence determining device to:
- obtain the plurality of values of the hemoglobin state in the brain blood of the user from the near-infrared spectroscopy sensor;
- calculate a varying threshold;
- obtain a value of the varying threshold at a base time;
- determine that the user is concentrating, when a first value of the plurality of values of the hemoglobin state in the brain blood of the user falls below the value of the varying threshold;
- evaluate, based on the determination that the user is concentrating, a degree of concentration of the user;
- and
- present a result of the evaluated degree of concentration of the user, wherein
- the varying threshold is calculated using repeated loop processing, by increasing a reference time between a start time and an end time,
- the obtained value of the varying threshold is a negative maximum value of the calculated varying threshold, based on a result of the repeated loop processing, and
- the result of the evaluated degree of concentration of the user is based on a comparison of a characteristic of the plurality of values of the hemoglobin state in the brain blood of the user with a characteristic of a task executed by the user.
A concentration presence/absence determining method for determining whether or not a user is concentrating, the concentration presence/absence determining method comprising:
- sensing, using a near-infrared spectroscopy sensor, a plurality of values of a hemoglobin state in brain blood of the user;
- obtaining, using a hardware processor, the plurality of values of the hemoglobin state in the brain blood of the user from the near-infrared spectroscopy sensor;
- calculating, using the hardware processor, a varying threshold;
- obtaining, using the hardware processor, a value of the varying threshold at a base time;
- determining, using the hardware processor, that the user is concentrating, when a first value of the plurality of values of the hemoglobin state in the brain blood of the user obtained in the obtaining of the plurality of values of the hemoglobin state in the brain blood of the user falls below the value of the varying threshold obtained in the obtaining of a varying threshold;
- evaluating, based on the determination in the determining that the user is concentrating, a degree of concentration of the user;
- and
- presenting a result of the evaluation of the degree of concentration of the user in the evaluating, wherein
- the varying threshold is calculated in the calculating using repeated loop processing, by increasing a reference time between a start time and an end time,
- the value of the varying threshold obtained in the obtaining the value of the varying threshold at the base time is a negative maximum value of the varying threshold calculated in the calculating, based on a result of the repeated loop processing, and
- the result of the evaluation of the degree of concentration of the user presented in the presenting is based on a comparison of a characteristic of the plurality of values of the hemoglobin state in the brain blood of the user with a characteristic of a task executed by the user.
A non-transitory computer-readable recording medium for use in a computer, the non-transitory computer-readable recording medium having a computer program recorded thereon, the computer program being for determining whether or not a user is concentrating, and causing the computer to execute:
- obtaining, using a processor of the computer, a plurality of values of a hemoglobin state in brain blood of the user sensed by a near-infrared spectroscopy sensor;
- calculating, using the processor of the computer, a varying threshold;
- obtaining, using the processor of the computer, a value of the varying threshold at a base time;
- determining, using the processor of the computer, that the user is concentrating, when a first value of the plurality of values of the hemoglobin state in the brain blood of the user obtained in the obtaining of the plurality of values of the hemoglobin state in the brain blood of the user falls below the value of the varying threshold obtained in the obtaining of a varying threshold;
- evaluating, based on the determination in the determining that the user is concentrating, a degree of concentration of the user;
- and
- presenting a result of the evaluation of the degree of concentration of the user in the evaluating, wherein
- the varying threshold is calculated in the calculating using repeated loop processing, by increasing a reference time between a start time and an end time,
- the value of the varying threshold obtained in the obtaining the value of the varying threshold at the base time is a negative maximum value of the varying threshold calculated in the calculating, based on a result of the repeated loop processing, and
- the result of the evaluation of the degree of concentration of the user presented in the presenting is based on a comparison of a characteristic of the plurality of values of the hemoglobin state in the brain blood of the user with a characteristic of a task executed by the user.
Dependencies are inferred from the claim text.