Inez is sound asleep. She shows a slowed heart rate and slowed respiration, and you can see that her eyes drift slowly and in an uncoordinated fashion under her eyelids. Which of the following brain-wave rhythms would you likely find if you were to obtain an EEG recording while Inez is in this state?

Question

Quizplus · Accepted Answer

Inez is exhibiting slow heart rate, slowed respiration, and uncoordinated eye movements, which are all characteristic of deep sleep (also known as slow wave sleep). Delta waves are the slowest brain wave pattern and are typically seen during deep sleep. Alpha waves are present when a person is awake but relaxed, beta waves are present when a person is actively engaged in mental activity, and REM sleep is characterized by rapid eye movements and a high level of brain activity, which is not consistent with Inez's state of being sound asleep with slow heart rate and respiration.

Inez Is Sound Asleep