标题:820 比喩の理解と使用におけるろう児と普通児の差異(22.言語・聴力・視力障害,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] 820 The use of metaphor and irony in deaf pupils as compared to that of normal children(22.Speech, hearing and seeing difficulties, PROCEEDINGS OF THE FIFTH ANNUAL CONVENTION OF JAPANESE ASSOCIATION OF EDUCATIONAL PSYCHOLOGY PAPERS AND THE SUMMARIES OF DISCUSSIONS) [in Japanese]