Stroop効果による痴呆自動診断のための基礎研究 : MMSEとStroop効果

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The rate of aging has exceeded 17% in Japan. The number of the demented elderly has been increasing with the increment of the rate. Moderate or severe demented elderly can't be treated, but mild demented elderly or the elderly with forgetfulness can be recovered by improvement of their living environment and cognitive rehabilitation. The final aim of this study is to develop the diagnosis system for forgetfulness or mild dementia by the Stroop effect. The aim of this paper is to discuss the correlation between MMSE (Mini Mental State Examination) score and the Stroop effect to evaluate the use of the effect for dementia diagnosis. Words consistent with the color facilitate color naming while color words incongruent with the color produce interference. Therefore it takes longer to answer the color of the words. This is called "The Stroop effect" and was discovered in 1935 by J.R.Stroop. 38 elderly subjects were evaluated. In the first place subjects were diagnosed dementia (cognitive function) with MMSE. Next they were evaluated on the Stroop efffect. In the Stroop effect measurement three cards (W card, C card, CW card) were shown to subject in sequence on the display. W card was printed 16 black kanji words and the subjects were instructed to read the words. C card was printed 16 color squares and the subjects were instructed to say the color. CW card was printed 16 color kanji words and the subjects were instructed to not read the words but say the color. The time to answer all the words (or colors) on each card (Tw, Tc, Tew) were measured It was shown that there was close correlation between MMSE score and Tew and that the Stroop effect didn't depend on age. It was concluded that the Stroop effect was available to diagnose forgetfulness and mild dementia.
2002-01-15

Stroop効果による痴呆自動診断のための基礎研究 : MMSEとStroop効果

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