RIKEN researchers found that positive emotions strengthen perceptual memories during non-REM sleep in mice. This memory consolidation involves a three-part brain circuit including the amygdala, which is crucial for emotional processing. Blocking amygdala signals during non-REM sleep disrupted memory retention, while REM sleep blockage had no effect. These findings suggest potential treatments for conditions like addiction and PTSD by targeting non-REM sleep processes. The study, published in Neuron, offers insight into how emotional experiences impact memory.

https://neurosciencenews.com/sleep-emotion-memory-28402/

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