A(n) __________ is used to measure the brain's electrical activity while a(n) __________ is used to capture images of the brain's blood flow and oxygen use.

Question

Quizplus · Accepted Answer

EEG (electroencephalogram) is used to measure the brain's electrical activity, while fMRI (functional magnetic resonance imaging) is used to capture images of the brain's blood flow and oxygen use. Option A (PET) is incorrect because it captures images of the brain's blood flow but not electrical activity. Option B (ECG) is incorrect because it measures the heart's electrical activity, not the brain's. Option D (fMRI first and EEG second) is incorrect because fMRI is less time-sensitive than EEG and can miss rapid changes in brain activity.

A(n) __________ Is Used to Measure the Brain's Electrical Activity