That’s how Apple defined it in testing: If an EEG said a ... This stage includes spikes of brain activity called sleep spindles, and distinctive brainwave patterns called K complexes.

A study reveals unique brain activity during lucid dreaming. Using EEG data, the research identifies reduced beta-band power and increased gamma-band activity in specific brain regions.

Our sleep-wake pattern is a central feature of human ... rolling delta waves, as measured on an EEG. In stage 3, delta waves are present less than half the time; in stage 4, more than half.

“The new, FDA-approved treatments for Alzheimer’s disease are effective at the earlier stages of dementia ... stimulation can ...

If I were looking at you in a sleep lab, I could actually look at your EEG recordings and I could look at how much stage three, four and REM sleep you get because that really is the determinant of ...

They become aware, mid-dream, that they’re dreaming. They explore their fantasies with the same sense of self as they have ...

EEG is already used to diagnose and study conditions such as epilepsy, brain inflammation and sleep disorders. Mitsukura was first interested in using it to study depression, but soon began to ...