The technique that detects voltage changes in the brain is
A) computed tomography (CT).
B) electroencephalography (EEG).
C) functional magnetic resonance imaging (fMRI).
D) positron emission tomography (PET).

Question

Quizplus · Accepted Answer

Electroencephalography (EEG) is the technique that detects voltage changes in the brain by placing electrodes on the scalp to measure electrical activity. CT, fMRI, and PET all measure different aspects of brain activity such as blood flow, oxygen consumption, and structural changes, but they do not directly measure electrical activity like EEG.

The Technique That Detects Voltage Changes in the Brain Is