Punishment Inhibits an Instrumental Response in Hooded Rats

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Science  30 Mar 1962:
Vol. 135, Issue 3509, pp. 1133-1134
DOI: 10.1126/science.135.3509.1133


Punishment led to the cessation of a food-rewarded bar-pressing response in hooded rats deprived of food for 23 hours. The response remained inhibited for 2 weeks, and only one of four rats resumed responding when food deprivation was increased to 47 and 71 hours.