Retroactive interference in discrimination learning

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Science  11 Dec 1981:
Vol. 214, Issue 4526, pp. 1254-1257
DOI: 10.1126/science.7302595


In stage 1 of this experiment pigeons were trained to discriminate between two levels of noise or two colors by pecking on one of two disks. In stage 2 the discriminative stimuli were not presented, but pecking on the disks was rewarded on a random schedule. The second procedure caused the pigeons to forget the discrimination they had learned.