When comparing fMRIs to PET scans, you can see that:
A)PET scans provide a much sharper picture than fMRIs.
B)PET scans use less radioactive glucose than fMRIs.
C)fMRIs provide a picture of brain activity averaged over seconds rather than the several minutes that PET scans require.
D)PET scans can be used to study the details of much smaller brain structures than fMRIs.

Question

Quizplus · Accepted Answer

fMRIs provide a picture of brain activity that is averaged over seconds, whereas PET scans require several minutes to scan the brain. This makes fMRIs more suitable for studying real-time brain activity. The other options are incorrect, as PET scans use more radioactive glucose than fMRIs and can be used to study larger brain structures. Additionally, the level of detail in a fMRI is similar to that provided by a PET scan.

When Comparing FMRIs to PET Scans, You Can See That