Rebecca is hooked up to an electroencephalograph (EEG) in a sleep lab. As the researcher watches the printout from the EEG, delta waves appear. What can the researcher conclude about Renaude's state of consciousness, based on this information?

Question

Quizplus · Accepted Answer

Delta waves are typically associated with deep stage 3 or slow-wave sleep. It is unlikely that Rebecca is in REM sleep, as REM sleep is associated with rapid eye movements and more active brain waves, and delta waves are not typically seen during REM sleep. Similarly, stage 1 sleep typically does not involve delta waves, and drowsy wakefulness or relaxation would not produce the same pattern of brain activity seen in stage 3 sleep. Therefore, the best choice is C, which suggests that Rebecca has just entered or is in stage 3 sleep.

Rebecca Is Hooked Up to an Electroencephalograph (EEG) in a Sleep