Small metal disks pasted onto Miranda's scalp are connected by wire to a machine that translates the electrical energy from her brain into wavy lines on a moving piece of paper.From this description,it is evident that Miranda's brain is being studied through the use of a/an:
A)CT scan.
B)MRI.
C)PET scan.
D)EEG.

Question

Quizplus · Accepted Answer

The description matches the use of an electroencephalogram (EEG), which involves placing electrodes on the scalp to record the electrical activity of the brain. The wavy lines on the paper indicate the brain's electrical activity, which is what an EEG measures. CT scans, MRI scans, and PET scans use different technologies to create images of the brain, and do not involve recording electrical activity.

Small Metal Disks Pasted onto Miranda's Scalp Are Connected by Wire