REM sleep prefrontal high-frequency oscillation chains mediate distinct cortical - hippocampal reactivation patterns compared to NREM sleep.
Shin JD; Satchell M; Miller P; Jadhav SP
Scientists studied how sleep helps our brains remember things by looking at mice. They found that a special kind of brain activity called "HFO chains" happens during REM sleep, helping certain brain areas communicate better. These findings show how different sleep stages affect memory in different ways.