标题:817 精神薄弱児の心的行動経過中における皮膚電流反射運動の特徴(21.精神薄弱(2),日本教育心理学会第5回総会部門別研究発表要旨・討論の概要) [in Japanese] 817 Galvanic skin reflex of feeble-minded during mental calculation(21.Mental deficienty (2),PROCEEDINGS OF THE FIFTH ANNUAL CONVENTION OF JAPANESE ASSOCIATION OF EDUCATIONAL PSYCHOLOGY PAPERS AND THE SUMMARIES OF DISCUSSIONS) [in Japanese]