Mentation test method and mentation test apparatus
First Claim
1. A mentation test method comprising:
- displaying a randomly distributed given number of targets to be sequentially pointed according to a prescribed order on a screen of a display means;
measuring a search response time required for a test subject to search each target for every target by requesting the subject to sequentially point the targets according to a prescribed order; and
calculating mentation of the test subject based on the search response time according to target order.
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Abstract
A mentation test method that can test mentation of a human such as conjecture of brain'"'"'s mentation age, discrimination of early stage of dementia and prediction of onset of dementia in addition to diagnosis of prediction probability of onset of dementia and screening of mental functions of senile dementia patients, decision of the effect of rehabilitation of the aftereffects of cerebrovascular disfunction, investigation of the therapeutic effects of medicines and side effects such as sleepiness, testing of degree of intoxication, testing of peripheral attention visual field, testing of cerebral dominant hemisphere, testing of various psychoneurosis such as schizophrenia and cerebrovascular disorder (syndrome and diagnosis, and decision of the effects of rehabilitation and treatment), and check of the degree of fatigue.
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Citations
17 Claims
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1. A mentation test method comprising:
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displaying a randomly distributed given number of targets to be sequentially pointed according to a prescribed order on a screen of a display means;
measuring a search response time required for a test subject to search each target for every target by requesting the subject to sequentially point the targets according to a prescribed order; and
calculating mentation of the test subject based on the search response time according to target order. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
a test 1 in which a given number of the targets to be pointed in a prescribed order are displayed on the screen of the display means by being randomly distributed, the test subject is requested to point each target in a prescribed order, and a dummy target having a different color from the target is displayed in place of the pointed target at the position of the pointed target when the target is pointed in a correct order; a test 2 in which a given number of the targets to be pointed in a prescribed order are displayed on the screen by being randomly distributed, the test subject is requested to point each target in a prescribed order, and a dummy target is displayed in place of the pointed target at a randomly selected position when the target has been pointed in a correct order; and
a test 3 in which a given number of the targets to be pointed in a prescribed order are displayed on the screen by being randomly distributed, the test subject is requested to point each target in a prescribed order, and a dummy target is displayed in place of the pointed target at a randomly selected position when the target has been pointed in a correct order, besides changing the display positions of each target and dummy target, wherein the search response time required for searching the target in each test is measured for every target, and mentation age of the test subject'"'"'s brain is calculated based on the search response times.
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9. The mentation test method according to claim 8, wherein the search response time for each test is displayed on the screen after completing the entire test.
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10. The mentation test method according to claim 8, wherein the calculated mentation age of the test subject'"'"'s brain is displayed on the screen after completing the entire test.
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11. A mentation test method comprising:
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displaying a randomly distributed given number of targets to be sequentially pointed according to a prescribed order on a screen of a display means;
measuring a search response time required for a test subject to search each target for every target by requesting the subject to sequentially point the targets according to a prescribed order;
calculating mentation of the test subject based on the measured search response times according to target order;
executing, in a prescribed order, a test 1 in which a given number of the targets to be pointed in a prescribed order are displayed on the screen of the display means by being randomly distributed, the test subject is requested to point each target in a prescribed order, and a dummy target having a different color from the target is displayed in place of the pointed target at the position of the pointed target when the target is pointed in a correct order;
a test 2 in which a given number of the targets to be pointed in a prescribed order are displayed on the screen by being randomly distributed, the test subject is requested to point each target in a prescribed order, and a dummy target is displayed in place of the pointed target at a randomly selected position when the target has been pointed in a correct order; and
a test 3 in which a given number of the targets to be pointed in a prescribed order are displayed on the screen by being randomly distributed, the test subject is requested to point each target in a prescribed order, and a dummy target is displayed in place of the pointed target at a randomly selected position when the target has been pointed in a correct order, besides changing the display positions of each target and dummy target, wherein the search response time required for searching the target in each test is measured for every target, and mentation age of the test subject'"'"'s brain is calculated based on the search response times; and
initially displaying 25 targets in each test;
disregarding the search response times for the first to fifth targets; and
calculating the mentation age of the test subject'"'"'s brain according to the equations 1 and 2 below based on the first half of the test 1 in which the search response times for the 6th to 15th points are summarized, defined as first half of task A;
the last half of the test 2 in which the search response times for the 16th to 25th points are summarized, defined as last half of task B; and
the first half of the test 3 in which the search response times for the 6th to 15th points are summarized, defined as first half of task C; and
the last half of test 3 in which the search response times for the 16th to 25th points are summarized, defined as last half of task C;
- View Dependent Claims (12, 13)
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14. A mentation test method comprising:
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displaying a randomly distributed given number of targets to be sequentially pointed according to a prescribed order on a screen of a display means;
measuring a search response time required for a test subject to search each target for every target by requesting the subject to sequentially point the targets according to a prescribed order; and
calculating mentation of the test subject based on the measured search response times according to target order; and
executing, in a prescribed order, a test 2 in which a given number of the targets to be pointed in a prescribed order are displayed on the screen by being randomly distributed, the test subject is requested to point each target in a prescribed order, and a dummy target is displayed in place of the pointed target at a randomly selected position when the target has been pointed in a correct order; and
a test 3 in which a given number of the targets to be pointed in a prescribed order are displayed on the screen by being randomly distributed, the test subject is requested to point each target in a prescribed order, and a dummy target is displayed in place of the pointed target at a randomly selected position when the target has been pointed in a correct order, while changing the display positions of each target and dummy target, wherein the search response time required for searching the target in each test is measured for every target, the ratio of the search response time in test 2 relative to the search response time in test 3 is calculated, and presence of dementia or prediction probability of onset of dementia is judged from the calculation results.- View Dependent Claims (15, 16, 17)
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Specification