Sleep Disorders/Polysomnography study guide questions with correct answers

What does Stage 1 NREM sleep represent? CORRECT ANSWER Transition from wakefulness to sleep What would the EEG show during Stage 1 NREM? CORRECT ANSWER Primarily alpha activity with low voltage mixed frequency activity Slow rolling eye movements What would the EEG show during Stage 2 NREM? CORRECT ANSWER Some low voltage mixed frequency as stage 1 K complexes or sleep spindles or both Eye movements absent What would Stages 3 & 4 show during NREM? CORRECT ANSWER Delta waves- slow wave sleep Absent eye movements What is Delta Sleep? CORRECT ANSWER Deepest sleep What is unique to REM sleep that is not found with NREM sleep? CORRECT ANSWER Phasic periods of rapid eye movement What stage of sleep does most dreaming take place? CORRECT ANSWER REM (rapid eye movement) sleep What would be considered the first sleep cycle in reference to sleep architecture? CORRECT ANSWER NREM sleep