Sounds May Help Solidify Memories While Asleep
Deep sleep is an important time for consolidating memories, researchers find. Sounds can penetrate deep sleep and enhance associated memories upon waking, new research finds.
In a study linking sounds to what is called spatial memory, researchers at Northwestern University in Chicago showed 50 objects on a screen to study participants and played corresponding sounds, like a cat meowing and a tea kettle whistling. Then they played some of the sounds as participants napped.
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