Deep Sleep Brain Waves (IMAGE)

University of Bern

Deep Sleep Brain Waves

Caption

Left panel: In the sleep laboratory, the electrical activity of the brain is recorded using electroencephalography (EEG). Right panel: During deep sleep, slow oscillatory high-amplitude waves emerge in the EEG. These waves are generated by the brain cells' rhythmic alternation between highly active phases (red: "up-states") and passive phases (blue: "down-states").

Credit

Simon Ruch/Marc Züst, University of Bern

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