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Neuron. 2011 May 26;70(4):589-96. doi: 10.1016/j.neuron.2011.05.010.

Resolving new memories: a critical look at the dentate gyrus, adult neurogenesis, and pattern separation.

Author information

1
Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.

Abstract

Recently, investigation of new neurons in memory formation has focused on a specific function-pattern separation. However, it has been difficult to reconcile the form of separation tested in behavioral tasks with how it is conceptualized according to computational and electrophysiology perspectives. Here, we propose a memory resolution hypothesis that considers the unique information contributions of broadly tuned young neurons and highly specific mature neurons and describe how the fidelity of memories can relate to spatial and contextual discrimination. See the related Perspective from Sahay, Wilson, and Hen, "Pattern Separation: A Common Function for New Neurons in Hippocampus and Olfactory Bulb," in this issue of Neuron.

PMID:
21609818
PMCID:
PMC3240575
DOI:
10.1016/j.neuron.2011.05.010
[Indexed for MEDLINE]
Free PMC Article

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