What EEG pattern is associated with a person who is awake and relaxed?

The EEG pattern associated with a person who is awake and relaxed is characterized by alpha waves. These brain waves typically range from 8 to 12 Hz and are prominent when a person is in a state of quiet wakefulness, often with closed eyes. Alpha waves indicate a state of relaxation and are commonly associated with the brain's transition into a less alert state without completely falling asleep.

In contrast, delta waves are associated with deep sleep and are much slower, ranging from 0.5 to 4 Hz. Theta waves occur during light sleep or deep relaxation, but they are not primarily linked to awake relaxation. REM sleep waves, characterized by low-amplitude mixed frequency activity similar to wakefulness, occur specifically during rapid eye movement sleep, which is distinctly different from the relaxed awake state.