The EEG Tracing of the Patient in the Sleep Laboratory

Multiple Choice

The EEG tracing of the patient in the sleep laboratory shows that brain waves have slowed to about 1 to 2 cycles per second. In addition, breathing and heart rate have decreased. It is most likely that the patient is

A) in stage 1 non-REM sleep.
B) experiencing feelings of anxiety.
C) in stages 3 and 4 of sleep.
D) in paradoxical sleep.