Interference and Forgetting in Bird and Fish

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Science  23 Jan 1970:
Vol. 167, Issue 3917, pp. 389-390
DOI: 10.1126/science.167.3917.389


Retention in the pigeon and in the goldfish was measured 1 day or 2 weeks after the mastery of each of a series of color discrimination. The amount of forgetting in the pigeon increased with the number of prior problems and increased more rapidly at the longer than at the shorter interval. the amount of forgetting in the goldfish was independent, at both intervals, of the number of prior problems. These results point to the operation of different memory mechanisms in the two animals.

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