Recovery of Memory after Amnesia Induced by Electroconvulsive Shock

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Science  06 Jan 1967:
Vol. 155, Issue 3758, pp. 102-104
DOI: 10.1126/science.155.3758.102


Electroconvulsive shock given to rats immediately after one-trial avoidance learning produced a significant amnesic effect 24 hours later; this amnesia had largely disappeared in further retention tests 48 and 72 hours after treatment. This result puts in question a basic assumption implicit in most memory consolidation studies that such amnesic effects will be permanent.