Schemas and memory consolidation

被引:840
|
作者
Tse, Dorothy
Langston, Rosamund F.
Kakeyama, Masaki
Bethus, Ingrid
Spooner, Patrick A.
Wood, Emma R.
Witter, Menno P.
Morris, Richard G. M. [1 ]
机构
[1] Univ Edinburgh, Ctr Cognit & Neural Syst, Lab Cognit Neurosci, Edinburgh EH8 9JZ, Midlothian, Scotland
[2] Univ Edinburgh, Neurosci Res Ctr, Edinburgh EH8 9JZ, Midlothian, Scotland
[3] Univ Tokyo, Grad Sch, Div Environm Hlth SCi, Ctr Dis Biol & Integrat Med,Bunkyo Ku, Tokyo 1130033, Japan
[4] Univ Tokyo, Fac Med, Bunkyo Ku, Tokyo 1130033, Japan
[5] Med Tech Res Ctr, Ctr Biol Memory, NO-7489 Trondheim, Norway
基金
英国医学研究理事会;
关键词
D O I
10.1126/science.1135935
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Memory encoding occurs rapidly, but the consolidation of memory in the neocortex has long been held to be a more gradual process. We now report, however, that systems consolidation can occur extremely quickly if an associative "schema" into which new information is incorporated has previously been created. In experiments using a hippocampal-dependent paired-associate task for rats, the memory of flavor-place associations became persistent over time as a putative neocortical schema gradually developed. New traces, trained for only one trial, then became assimilated and rapidly hippocampal-independent. Schemas also played a causal role in the creation of lasting associative memory representations during one-trial learning. The concept of neocortical schemas may unite psychological accounts of knowledge structures with neurobiological theories of systems memory consolidation.
引用
收藏
页码:76 / 82
页数:7
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