Dorso-ventral hippocampal neural assemblies are preferentially reactivated during NREM sleep following an aversive experience
JF Morici,
I Paiva-Lima,
É Pronier
et al.
Abstract:Sleep plays a crucial role in memory stabilization. In the dorsal hippocampus (dHPC), fast oscillations (sharp-wave ripples) during non-REM sleep consolidate spatial memories through place cell reactivation. The hippocampal formation is heterogeneous; the dHPC processes mostly contextual information, while the ventral part (vHPC) encodes valence and anxiety. We propose that dorsal- ventral communication during sleep is involved in the consolidation of emotional memories, potentially integrating or segregating … Show more
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