A prefrontal to lateral entorhinal pathway disrupts memory.
Hisey, E.; Soderling, S. H.
Show abstract
While the neural circuits underlying memory encoding, storage, and retrieval are well characterized, the circuits that act to disrupt memory are enigmatic. Here we find that silencing a projection from the prefrontal cortex to the lateral entorhinal cortex surprisingly improves spatial working memory and contextual memory. We then found that the same cell type shows increased activity during errors in a spatial working memory test. Finally we found that optogenetic activation of the same activity patterns can disrupt working memory performance. By using a combination of intersectional genetic and in vivo imaging techniques we advance evidence that a novel prefrontal-entorhinal pathway critically participates in memory disruption.
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