What is the frequency of Delta 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 Delta waves?

Explanation:
Delta waves are the slowest EEG rhythms, signaling deep non-REM sleep (slow-wave sleep). They occur at about 0.5 to 4 Hz and are typically high in amplitude. Among the options, the range 0.5-2 Hz best reflects these slow oscillations, making it the most suitable match for delta activity in the given choices. The other ranges correspond to other EEG bands: theta is around 4-7 Hz, alpha 8-13 Hz, and beta/gamma are faster than 13 Hz.

Delta waves are the slowest EEG rhythms, signaling deep non-REM sleep (slow-wave sleep). They occur at about 0.5 to 4 Hz and are typically high in amplitude. Among the options, the range 0.5-2 Hz best reflects these slow oscillations, making it the most suitable match for delta activity in the given choices. The other ranges correspond to other EEG bands: theta is around 4-7 Hz, alpha 8-13 Hz, and beta/gamma are faster than 13 Hz.

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