Sheri has been having difficulty sleeping lately,and the problem has gotten bad enough that is interfering with her daily functioning.At the suggesting of her physician,she goes to a sleep laboratory to see if something treatable is going on.The sleep specialists want to study her brain activity while she sleeps,so which of the following instruments is she most likely to be connected to during the night in the lab?
A) An EMG machine
B) An EKG machine
C) An EEG machine
D) An ESP machine

Question

Quizplus · Accepted Answer

An EEG (electroencephalogram) machine records and monitors brain activity during sleep. This is the best choice for the sleep specialists to study Sheri's brain activity during the night. EMG machines measure muscle activity, EKG machines measure heart activity, and ESP machines do not exist as a medical instrument.

Sheri Has Been Having Difficulty Sleeping Lately,and the Problem Has