Small electrodes are pasted onto Miranda's scalp, and they 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) a CT scan
B) functional magnetic resonance imaging
C) a microelectrode
D) an electroencephalograph

Question

Quizplus · Accepted Answer

The description in the passage refers to the use of small electrodes on Miranda's scalp that are connected by wire to a machine that translates the electrical energy from her brain into wavy lines on a moving piece of paper. This is a classic description of electroencephalography (EEG), where electrodes are placed on the scalp to measure the electrical activity of the brain. Therefore, the best choice is D, an electroencephalograph. The other options are not consistent with the description given in the passage.

Small Electrodes Are Pasted onto Miranda's Scalp, and They Are