Self-Determination of Critical Flicker Frequencies in Monkeys

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Science  25 May 1962:
Vol. 136, Issue 3517, pp. 714-715
DOI: 10.1126/science.136.3517.714


Five rhesus monkeys have been successfully trained by operant conditioning techniques to continuously adjust the rate of flicker of an illuminated target above and below what is presumed to be their fusion threshold.