人間に於ける電気性皮膚条件反射の延滞について
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概要
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The senior author, Kotake, has studied the salivary conditioned responses in man for more than ten years. He has found several original facts; especially his method of differential reinforcement should be noticed. The present investigation on the galvanic conditioned reflex was designed in an attempt to find more details on the process of the conditioned responses. As the preliminary experiments were reported in the former paper by Kotake, this report concerns only with the main experiment on the delay of the conditioned galvanic skin reflexThe galvanic skin reflex (GSR) was employed as the indicator of conditionig. GSR was measured by means of the method employing the external source of current through the electric condenser's circuits. The unconditioned stimulus was an electric shock to the right wrist delivered from a Porter's inductorium. The conditioned stimulus was a tone produced by the C-R frequency oscillator and given through a set of earphones. The tone was of 1000 cycles and its intensity was about 40db above the threshold. The conditioned stimulus was presented for 20 seconds. The interval between the onset of the tone and the delivery of the shock was 5 seconds in Group I, 10 seconds in Group II, and 15 seconds in Group III, On the first day of this experiment, however, every group was conditioned simultaneously. The experiments on the delayed conditioning took place on the second and the third day.Every group was reinrorced 10 times a day.The results showed that the delayed conditioned responses were feeble. It was found that, as the period of delay became longer, the delayed responses diminished, and the dispersion of the mean latencies of the responses increased. On the third day, the period of delay for Group I was changed from 5 seconds to 10. In this case the responses of Group I were stronger than those of Group II.In general, according to our experiments, the delayed conditioned responses were weaker than simultaneous ones. However, we could show, in details, the processes of the delayed conditioning in these experiments. Our purpose was to realize the possibility of delaying, and to analyse the process of it.
- 公益社団法人 日本心理学会の論文
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