"The hippocampus has two main poles. Its dorsal portion helps represent space and supports the brain's inner map of an environment. Its ventral portion sits closer to emotional circuits and has stronger ties to fear and anxiety."
"During non-rapid-eye-movement sleep, the hippocampus produces brief bursts of electrical activity linked to replay, when patterns from waking experience return. The strongest distinction came from patterns linking the dorsal and ventral hippocampus."
The hippocampus plays a crucial role in memory by binding locations with emotional experiences. It has two main parts: the dorsal portion for spatial representation and the ventral portion for emotional processing. A study found that memories are not just spatial records but also carry emotional significance. During sleep, the hippocampus replays these experiences, with threatening memories being recalled with greater precision than rewarding ones. This highlights the complex interplay between memory, emotion, and sleep in processing experiences.
Read at Psychology Today
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