"Shutoff Pulse Illusion"

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Science  30 Jan 1959:
Vol. 129, Issue 3344, pp. 272
DOI: 10.1126/science.129.3344.272


Visual signals produced by sharp illumination decrements are commonly misinterpreted because of the presence of an illusory sharp increment at the moment of switching. Conditions for occurrence of the illusion are outlined, as well as conditions under which it is not reported.