Abstract
WHEN a well learned habit is clearly remembered its recall is blocked by an intracerebral injection of the anticholinesterase di-isopropyl fluorophosphate (DFP)1. When, however, the same habit is almost forgotten its memory is enhanced by treatment with the same drug2. Here we show that when a habit is only partially learned its recall is enhanced by injection of the anticholinesterase DFP, and further that the better the original learning of the habit the worse the recall of the habit after treatment with the drug.
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References
Deutsch, J. A., Hamburg, M. D., and Dahl, H., Science, 151, 221 (1966).
Deutsch, J. A., and Leibowitz, S. F., Science, 153, 1017 (1966).
Deutsch, J. A., Diseases of Nervous System, 27, 7 (1966).
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DEUTSCH, J., LUTZKY, H. Memory Enhancement by Anticholinesterase as a Function of Initial Learning. Nature 213, 742 (1967). https://doi.org/10.1038/213742a0
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DOI: https://doi.org/10.1038/213742a0
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