When the brain is alert and awake and an EEG shows _____ waves.

Question

Quizplus · Accepted Answer

When the brain is alert and awake, an EEG shows beta waves. Beta waves have a frequency of 13 to 30 Hz and are associated with alertness, concentration, and focused mental activity. Alpha waves (8 to 12 Hz) are typically present when the brain is in a relaxed state, delta waves (0.5 to 4 Hz) are associated with deep sleep, and theta waves (4 to 8 Hz) are present during light sleep and drowsiness.

When the Brain Is Alert and Awake and an EEG