A Lab Assistant Is Monitoring the EEG Recordings of a Patient

question 7

Multiple Choice

A lab assistant is monitoring the EEG recordings of a patient in a sleep laboratory.The patient's brain waves change from about 14 cycles per second (cps) to 8-12 cps and then to 3-7 cps.What changes,if any,have likely occurred in the patient?

• A)First the patient was deeply asleep,then lightly asleep,then awake.
• B)The patient moved progressively from Stage 1 to Stage 3 sleep.
• C)First the patient was awake,then relaxed,then in Stage 1 sleep.
• D)The patient moved from REM sleep through stage 2 to stage 1.

---

Definitions:

Recovery

A period of economic improvement following a recession or downturn.

Trough

The lowest point in an economic cycle, marking the transition from recession to recovery.

Peak

The highest point reached by a commodity or market price before a decline.

Recession

A period of temporary economic decline during which trade and industrial activity are reduced.