Youssef Spends a Night at a Sleep Clinic

Multiple Choice

Youssef spends a night at a sleep clinic.The technicians at the clinic hook Youssef up to sensors to measure respiration,body temperature,muscle movements,and brain activity while he sleeps.What technique is the clinic using to study Youssef's sleep pattern?

A) positive sleep state analysis (PSSA)
B) somnambulism
C) polysomnography
D) biofeedback