精神薄弱児・者の弁別学習機制に関する研究   :   Study on the Cue Mechanismus in Discrimination Learning of Mentally Retarded Children and Adults 

作成者 梅谷, 忠勇, 堅田, 明義, 生川, 善雄
作成者の別表記 Umetani, Tadao, Katada, Akiyoshi, Nayukawa, Yoshio
日本十進分類法 (NDC) 370
内容 以下には, 実験IとIIで明らかにされた, 精薄児・者の弁別学習機制の発達にみられる特徴を総合的に述べてみよう。1)筆者らの精薄児の弁別学習機制の発達的変化に関する先行研究の所見と実験Iの精薄児・者の結果を考慮すると, 軽度精薄児・者の弁別学習機制は次のようである。すなわち, 次元性の概念的転位(前言語媒介)反応と非次元性の刺激の知覚的特徴に基づく反応が同程度であり, 次元性の概念的言語媒介反応がそれら2つの反応に比べ少ない。これに対して, 同一年齢水準の普通児は, 次元性の概念的言語媒介反応が他の反応に比べ多い。この点を発達的に普通児と比較すると, 軽度精薄児・者の弁別学習機制の発達は, 普通児のCA7・8歳程度で停滞することが確かめられる。2)精薄児・者の弁別学習機制の発達は, 知能遅滞の程度に密接に関連し, 軽度精薄者に比べ中度ないしは重度精薄者は, 次元性の概念的言語媒介反応の段階まで達する着は極めて少なく, 非次元性の単純な刺激の知覚的特徴に基づく反応の段階にとどまる着が多い。3)これら普通児と比べた場合の軽度精薄児・者, あるいは軽度精薄者と比べた場合の中度ないしは重度精薄着の弁別学習機制の未発達性は, 適切次元性の言語概念の所有における劣弱性というよりもむしろ, それらを媒介子として外的反応に結びつけて利用することが困難であることによるものといえる。
Two experiments were conducted to examine developmental characteristics in discrimination learning mechanismus of mentally retarded children and adults. The Ss in experiment I were 50 normal (intellectually-average), 54 mildly retarded children (IQ 54-77) and 11 mildly retarded adults (IQ 51-72) of 9 mental age levels. The Ss in experiment II were 80 mentally retarded adults. 80 Ss were classified into 24 mildly retarded adults (high MA-IQ group) and 56 moderately or severely retarded ones (low MA-IQ group). The materials and procedure were the very same as the discrimination optional shift task by Umetani et al (1977). Major findings were as follows, (a) Both the mildly retarded children and adults groups were exhibited fewer the normal children group in the conceptual-veral mediation shift, (b) However, there was no difference between the mildly retarded children and adults groups with same mental age levels in the discrimination cue mechanismus. (c) The difference was found between the mildly retarded adults group (high MA-IQ) and the moderately or severely retarded adults group (lowMA-IQ) with respect to the discrimination cue mechanismus. Namely, the nondimensional perceptual shift was more the moderately or severely retarded adults group than the mildly retarded adults group. And the opposite tendency was noticed about the conceptual-verbal mediation shift. The results of the mentally retarded children and adults were discussed developmentally and explained in terms of verbal mediation (usage) deficiency hypothesis.

公開者 千葉大学教育学部
コンテンツの種類 紀要論文 Departmental Bulletin Paper
DCMI資源タイプ text
ファイル形式 application/pdf
ISSN 0577-6856
NCID AN00179512
掲載誌情報 千葉大学教育学部研究紀要. 第1部 Vol.28 page.77-85 (19791220)
情報源 Bulletin of the Faculty of Education, Chiba University. Part I
言語 日本語
著者版フラグ publisher

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