集中維持機能(TAF)に関する研究(XI) : TAF-テストにおける脳超音波減衰変動

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For the purpose of physiological analysis of the function of concentration maintenance, an experiment on the changes of the cerebral circulation in nervous activities was carried out with the measurement of the changes of CUSA and the recording of the brain waves in the TAF test. The examinees were nineteen healthy male students.The results obtained were as follows:1) CUSA decreased during the TAF-test and, by stopping the test returned to the initial level.2) These changes correlated with the changes of the alpha-wave of the brain waves, that is, the stronger the alpha-blocking during the TAF-test, the greater the changes of DUSA.3) This excellent group, in a ten-minute TAF-test showed a tendency of a greater change of CUSA than that of the inferior group in TAF-test.These results, together with the present knowledge on CUSA and cerebral circulation, lead us to the conclusion that the use of the TAF-test resulted in the rise of the brain activity lelel around the cerebral cortex and the brain-stem reticular formation, which in turn brought about an increase in cerebral circulation in parallel with the changes of the brain waves. Also when testing this excellent group in comparison to the inferior group, it is considered that the TAF-test for the relatively long duration of ten minutes as in this experiment required a more strenuous effort in concentration of attention, consequently, the grade of increase in the cerebral circulation was greater in the excellent group.
日本衛生学会の論文

集中維持機能(TAF)に関する研究(XI) : TAF-テストにおける脳超音波減衰変動

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