脳性まひ幼児の図地知覚障害に関する研究

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The authors intended to demonstrate what characteristics cerebral palsied infants had in perception of a card which was tachistscopically shown with a line drawing or combined two line drawings. We devised tests consisted of 39 cards. 13 cards had line drawings of common everyday objects and were designated as everyday object cards. 13 cards had line drawings of geometric forms and were designated as geometric form cards. 13 cards had line drawings of the same objects as ones in the everyday object cards and the same forms as ones in the geometric form cards, and were designated as combined drawings cards. We showed a subject each of these cards with a tachistoscope for 0.4 second and finally showed the combined drawings cards once again with no time limit. We asked to tell him what he saw everytime we showed the cards. In the test of the everyday object cards and the geometric form cards we counted the number of the cards of which he gave names of the drawings exactly or nearly exactly. When he gave exact or nearly exact names both in the test of an everyday object card and in the test of a geometric form card, we classified his response to the test of a combined drawings card into one of the following four categories. (1) Figure response; the subject gave a name of an everyday object. (2) Figure and background response; the subject gave a name of an everyday object and a name of a geometric form. (3) Background response; the subject gave a name of a geometric form. (4) Wrong or no response; the subject gave a name different from names of the drawings or did not give a name of them. Experimental subjects were 17 cerebral palsied infants of 3 to 4 years old and 29 cerebral palsied in fants of 5 to 6 years old. Control subjects were 17 nonhandicapped in fants of 3 to 4 years and 18 nonhandicapped infants of 5 to 6 years old. The cerebral palsied infants made a much more mean number of background responses and wrong or no responses than the nonhandicapped when they were shown the cards for 0.4 second. There were three types of infants in the cerebral palsied infants; (1) The infants who made more background responses than the nonhandicapped. (2) The infants who made more wrong or no respon than the nonhandicapped. (3) The infants who made more background responses and more wrong or no responses than the nonhandicapped. In the test of the everyday object cards the cerebral palsied infants were fewer than the nonhandicapped in a mean number of the cards of which they gave names of the drawings exactly or nearly exactly. We interpreted the wrong or no responses made by the cerebral palsied infants as resulting from their inferior ability to perceive a tachistoscopically shown card.
日本特殊教育学会の論文
1971-06-01

脳性まひ幼児の図地知覚障害に関する研究

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