Effect of context exposure after fear learning on memory generalization in mice

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Abstract

Background: The conditions under which memory generalization occurs are not well understood. Although it is believed that fear memory generalization is gradually established after learning, it is not clear whether experiences soon after learning affect generalization. Results: Using a contextual fear conditioning paradigm in mice, we found that fear memory generalization occurred when mice were exposed to a familiar, unconditioned context soon after fear learning. Conclusions: Our results suggest that the familiarity of contexts and the timing of their exposure influences memory generalization, which increases our understanding of the mechanisms of generalization.

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Fujinaka, A., Li, R., Hayashi, M., Kumar, D., Changarathil, G., Naito, K., … Sakaguchi, M. (2016). Effect of context exposure after fear learning on memory generalization in mice. Molecular Brain, 9(1). https://doi.org/10.1186/s13041-015-0184-0

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