精神薄弱児の反応時間に及ぼす手掛り刺激の効果 時間的要因, 空間的要因の検討

近藤 文里

doi:10.4992/jjpsy.49.123

THE EFFECTS OF CUE STIMULI ON THE REACTION TIMES OF MENTALLY RETARDED CHILDREN

AN EXAMINATION OF THE TEMPORAL FACTOR AND THE SPATIAL FACTOR

FUMISATO KONDO

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JOURNAL FREE ACCESS

1978 Volume 49 Issue 3 Pages 123-130

DOI https://doi.org/10.4992/jjpsy.49.123

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Published: September 20, 1978 Received: July 04, 1977 Available on J-STAGE: July 16, 2010 Accepted: - Advance online publication: - Revised: -
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Date of correction: July 16, 2010 Reason for correction: - Correction: ABSTRACT Details: Wrong : This study investigated the covert behavior performed by retarded children during the warning interval of a RT task. For this purpose cue stimuli were introduced in a constant warning interval. Four experimental conditions differing in the presentation of the cue stimuli were designed, i.e., they consisted of combination of the mode of temporal presentation (regular vs. irregular) and the mode of spatial presentation (regular vs. irregular). Under the temporal regular conditions seven cue stimuli (C₁, C₂, C₃, ……, C₇: the duration of each cue stimulus is 1 sec.) were presented at intervals of 1 sec. Under the temporal irregular conditions they were presented at irregular intervals (the interval between C₇ and RS is always 1 sec). To present the cue stimuli spatially, seven cue stimuli were presented at the source (a, b, c, ……, g) of the stimulus panel (see Fig. 1). Under the spatially regular conditions they were presented in a regular alphabetic order, i.e., a→b→c→…→g. Under the spatially irregular conditions, on the other hand they were presented randomly, for example, b→f→a→…→f. Under these conditions it was intended to clarify the retardates' strategy in using the cue stimuli, and the condition which decreases the retardates' RT the most.
Subjects consisted of 12 retarded children and 12 normal children, matched for CA.
The main results were as follows:
(1) For retardates the spatial regularity was more effective than the temporal regularity. On the other hand, for normals there was little RT difference among the four experimental conditions.
(2) Compared with the RT under the condition in which only the last cue stimulus was presented (last cue-RS condition), it was indicated that retardates responded more quickly under the spatially regular conditions, while they responded more slowly under the spatially irregular conditions. In the results of normals there was scarcely any difference between the RT under the last cue-RS condition and the RT under the spatially irregular conditions.
(3) The effect of the temporal factor was significant for normals under both the spatially regular and irregular conditions. On the other hand, the effect was significant for retardates only under the spatially regular conditions.
(4) The retardates had minimized RT under the conditions in which the cue stimuli were presented regularly in the spatial order.
From these results it was suggested that the difference between retardates and normals in the strategy of using the cue stimuli might reflect difference in the covert behavior performed by them.
Right : To investigate the covert behavior performed by retardates during the warning intervals of simple RT task, cue stimuli consisting of a combination of the mode of the temporal presentation (regular vs. irregular) and the mode of spatial presentation (regular vs. irregular), were introduced in the warning interval. Retarded and normal children performed under these conditions. For retardates the spatial regularity was more effective than the temporal regularity. For normals there was little RT difference among the four experimental conditions. Retardates had minimized RT under the condition in which the cue stimuli were presented regularly in the spatial order. These results suggested the difference in the covert behavior performed by retardates and normals.

Abstract

To investigate the covert behavior performed by retardates during the warning intervals of simple RT task, cue stimuli consisting of a combination of the mode of the temporal presentation (regular vs. irregular) and the mode of spatial presentation (regular vs. irregular), were introduced in the warning interval. Retarded and normal children performed under these conditions. For retardates the spatial regularity was more effective than the temporal regularity. For normals there was little RT difference among the four experimental conditions. Retardates had minimized RT under the condition in which the cue stimuli were presented regularly in the spatial order. These results suggested the difference in the covert behavior performed by retardates and normals.

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