An fMRI can detect brain activity because
A) oxygenated blood is more prominent in areas that are active.
B) sodium is prominent in areas that are less active.
C) parts of the hindbrain are more magnetic during low activity.
D) parts of the midbrain are more magnetic during high activity.

Question

Quizplus · Accepted Answer

An fMRI detects brain activity by measuring the blood flow and oxygen levels in the brain. Active areas of the brain require more oxygenated blood, so an fMRI can detect these areas by looking for where the oxygenated blood is more prominent.

An FMRI Can Detect Brain Activity Because