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Rapid eye movements during sleep reveal where mice look in dreams


In mice, jerky eye movements in the REM phase of sleep correlate with recordings of brain activity in cells that track head orientation



Mind



25 August 2022

Eye movements in sleeping mice reflect what has happening in their dreams

Vittoria / Alamy

Have you ever wondered what animals dream about? When mice slumber, their rapid eye movements reflect the imagined movements of their heads in their dreams.

If the same is true for humans, researchers may be able to observe people walking around in their dreams by tracking their eye movements.

During a night’s sleep, people progress through different stages, from light dozing to heavy slumber. This includes several periods known as rapid eye movement (REM) sleep, when their eyes move …



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