CONTEXTUAL EFFECT IN SIMPLE REACTION TIME
YASUHARU OKAMOTO · Japanese Psychological Research · 1980
Role of expectancy in simple reaction time was investigated by changing the context in which an imperative stimulus was presented in various foreperiods (FP's). Two experiments were conducted. In experiment I, the range from which FP's were sampled was shifted, and in experiment II, the relative frequencies of various FP's were biased. The results of both experiments supported the assumption that expectancy has an important role in simple reaction time.