Functional magnetic resonance imaging (MRI) measures:
A)the absorption of radioactive chemicals by brain cells
B)electrical activity within the brain
C)resistance to x-rays by the brain
D)changes in blood flow or oxygen use in the brain

Question

Quizplus · Accepted Answer

Functional MRI (fMRI) measures changes in blood flow and oxygen use in the brain. This allows researchers to identify which areas of the brain are active during different tasks or stimuli. Unlike other imaging methods such as CT scans or PET scans, fMRI does not involve the use of radioactive chemicals or x-rays.

Functional Magnetic Resonance Imaging (MRI) Measures