What is the frequency of Beta waves?

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Prepare for the AASM Sleep Technologist Test. Enhance your knowledge with flashcards and multiple-choice questions, each offering hints and detailed explanations. Get confident for your exam!

Multiple Choice

What is the frequency of Beta waves?

Explanation:
Beta waves represent higher-frequency brain activity, typically defined as above 13 Hz (roughly 13–30 Hz). They’re associated with active thinking, concentration, and alert wakefulness. That’s why the frequency category above 13 Hz is the correct one. For context, theta is about 4–7 Hz and links to drowsiness or light sleep, delta around 0.5–4 Hz with deep sleep, and alpha about 8–13 Hz seen during relaxed, eyes-closed wakefulness. So the beta range is the higher end of the spectrum, above 13 Hz.

Beta waves represent higher-frequency brain activity, typically defined as above 13 Hz (roughly 13–30 Hz). They’re associated with active thinking, concentration, and alert wakefulness. That’s why the frequency category above 13 Hz is the correct one. For context, theta is about 4–7 Hz and links to drowsiness or light sleep, delta around 0.5–4 Hz with deep sleep, and alpha about 8–13 Hz seen during relaxed, eyes-closed wakefulness. So the beta range is the higher end of the spectrum, above 13 Hz.

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