Which neuroimaging method measures brain activity by detecting changes in blood flow during task performance?

Which neuroimaging method measures brain activity by detecting changes in blood flow during task performance?

• A. Functional Magnetic Response Imaging
• B. Functional Magnetic Resonance Imaging
• C. Functional Brain Response Imaging
• D. Functional Magnetic Representation Imaging

Answer: (B)

Measuring brain activity during tasks relies on the brain’s hemodynamic response—the change in blood flow and oxygenation that accompanies neural activation. Functional Magnetic Resonance Imaging captures this blood-oxygen-level dependent signal with MRI, producing maps of which brain areas are active during a task. It offers strong spatial detail and is noninvasive, though the timing is limited by how quickly blood flow responds. The other phrasings aren’t the standard terms for this technique, so they don’t correctly name the method.

Measuring brain activity during tasks relies on the brain’s hemodynamic response—the change in blood flow and oxygenation that accompanies neural activation. Functional Magnetic Resonance Imaging captures this blood-oxygen-level dependent signal with MRI, producing maps of which brain areas are active during a task. It offers strong spatial detail and is noninvasive, though the timing is limited by how quickly blood flow responds. The other phrasings aren’t the standard terms for this technique, so they don’t correctly name the method.