A sleep spindle is a burst of oscillatory brain activity visible on an EEG that occurs during stage 2 sleep. It consists of 12–14 Hz waves that occur for at least 0.5 seconds.
Read more about Sleep Spindle: Function
Famous quotes containing the word sleep:
“The hippopotamus’s day
Is passed in sleep; at night he hunts;
God works in a mysterious way—
The Church can sleep and feed at once.”
—T.S. (Thomas Stearns)