Compared with PET scans, fMRI provides
A) more information about brain activity.
B) better structural resolution.
C) fewer side effects.
D) more economical imaging.

Question

Quizplus · Accepted Answer

fMRI provides more information about brain activity than PET scans as it measures changes in blood flow and oxygenation levels in the brain, which directly reflect neural activity. PET scans, on the other hand, rely on the injection of a radioactive tracer and can only measure the uptake of this tracer in specific areas of the brain.

Compared with PET Scans, FMRI Provides