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Science 17 September 1971:
Vol. 173. no. 4002, pp. 1149 - 1151
DOI: 10.1126/science.173.4002.1149
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Articles

Selective Recovery from Retrograde Amnesia Produced by Hippocampal Spreading Depression

Bruce S. Kapp 1 and Allen M. Schneider 2

1 Department of Biology, University College of Arts and Science, New York University, New York 10453
2 Department of Psychology, New York University

Injections of potassium chloride into the hippocampus after learning produce temporary disruption of neural activity and retrograde amnesia. Recovery from the amnesia is selective—rats recover from amnesia of events that occurred24 hours before injection but do not recover from amnesia of events that occurred 10 seconds before injection.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)