Japanese Psychological Research
Online ISSN : 1468-5884
Print ISSN : 0021-5368
異なるSOAで呈示されるclickに対する単純反応時間と誘発電位潜時に及ぼす光刺激の効果
三宅 俊治谷口 俊治辻 敬一郎
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ジャーナル フリー

1986 年 28 巻 1 号 p. 1-10

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Click and light were presented in pairs with varying stimulus onset asynchronies (SOAs) and the subjects were asked to respond to the click onset. SRTs and EPs were obtained for two levels of click intensity and were plotted as a function of SOAs. As the related EP component, Nc, or the negative peak immediately following the click onset, was taken and the Nc recorded from Cz was analyzed. Although the larger Nc amplitudes occurred with shorter SRTs, no systematic changes in Nc amplitude were observed as a function of SOAs. Nc latencies, the variations of which were smaller for an intense click than for a faint one, were shorter for trials in which light preceded click (SOA≤0) than for click-alone trials, in correlation with SRTs. This fact suggests that the light given prior to click increased the arousal level and/or the processing speed. Bimodal facilitating effect of the internal processing speed upon SRTs was obtained at 50ms of SOA.
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© 公益社団法人 日本心理学会
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