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Long-term dynamics of CA1 hippocampal place codes


Authors: Yaniv Ziv, Laurie D Burns, Eric D Cocker, Elizabeth O Hamel, Kunal K Ghosh, Lacey J Kitch, Abbas El Gamal & Mark J Schnitzer
Publication: Nature Neuroscience
Date: February 10, 2013
Link to article: https://pubmed.ncbi.nlm.nih.gov/23396101/


Using Ca2+ imaging in freely behaving mice that repeatedly explored a familiar environment, we tracked thousands of CA1 pyramidal cells’ place fields over weeks. Place coding was dynamic, as each day the ensemble representation of this environment involved a unique subset of cells. However, cells in the ∼15-25% overlap between any two of these subsets retained the same place fields, which sufficed to preserve an accurate spatial representation across weeks.

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