Using a new retrovirus-optogenetics technique, researchers have found that new neurons in the adult hippocampus are important for memory, but only at an immature stage, when they show enhanced synaptic plasticity.
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Schoenfeld, T., Gould, E. New neurons retire early. Nat Neurosci 15, 1611–1612 (2012). https://doi.org/10.1038/nn.3268
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DOI: https://doi.org/10.1038/nn.3268
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