Abstract
Latencies of hand withdrawal to a weak stimulus (RTw) and to a strong stimulus, the intensity of which was increased unexpectedly (RTs) were obtained from 32 male and 32 female Ss. Most Ss showed facilitatory effect in their RTs. This and other results have been discussed with reference to the findings of an earlier study in which Ss were required to press a reaction time key in the same situation. A modification of curvilinear theory of performance has been suggested.
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References
Landis, C., & Hunt, W. A. The startle pattern. New York: Farber and Rinehart, Inc., 1939.
Purohit, A. P. Some correlates of inhibitory-facilitatory effect on reaction-time due to unexpected increase in stimulus intensity. Psychon. Sci., 1966, 5, 53–54.
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1. This research was financed by National Research Council of Canada.
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Purohit, A.P. Effect of unexpected increase in stimulus intensity on reaction time of hand withdrawal. Psychon Sci 6, 387–388 (1966). https://doi.org/10.3758/BF03330950
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DOI: https://doi.org/10.3758/BF03330950