Delta waves occur in stage
A) 1 EEG sleep.
B) 2 EEG sleep.
C) 3 EEG sleep.
D) 4 EEG sleep.
E) both C and D

Question

Quizplus · Accepted Answer

Delta waves occur in both stage 3 and stage 4 of EEG sleep. These stages are collectively referred to as slow-wave sleep due to the presence of slow, high-amplitude delta waves in the EEG signal. Stages 1 and 2 of EEG sleep are characterized by lighter, more easily disrupted sleep and do not typically exhibit delta waves.

Delta Waves Occur in Stage