Reports

Long Temporal Gradient of Retrograde Amnesia for a Well-Discriminated Stimulus

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Science  23 Sep 1966:
Vol. 153, Issue 3743, pp. 1547-1549
DOI: 10.1126/science.153.3743.1547

Abstract

This experiment tested the general validity of recent findings that retrograde amnesia can be produced by electroconvulsive shock only if the shock is administered within 10 to 30 seconds after the learning trial. Precautions were taken to avoid confusion of other shock effects with retrograde amnesia. A temporal gradient of elec- troconvulsive shock-produced retrograde amnesia, extending up to at least 1 hour, for a well-discriminated stimulus, was demonstrated in mice in a one-trial learning passive avoidance situation.

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