Examlex
Which of the following is not one of the age structure categories?
Theta Waves
Brainwave patterns associated with stages 1-2 of sleep, meditation, and creativity, typically indicating a state of somnolence or the initial stages of sleep.
Electroencephalograph (EEG)
An Electroencephalograph (EEG) is a device used to record the electrical activity of the brain to help diagnose conditions affecting the brain.
Stage 1 Sleep
The initial phase of the sleep cycle, characterized by light sleep from which individuals can be easily awakened.
REM Sleep
Rapid Eye Movement sleep, a sleep stage characterized by vivid dreams and heightened brain activity.
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