In _______, the person lies in a powerful magnetic field and is exposed to radio waves that cause part of the brain to emit signals.

Question

Quizplus · Accepted Answer

The given description matches the functional magnetic resonance imaging (fMRI) technique, in which a person lies in a magnetic field and is exposed to radio waves to measure changes in blood flow to specific brain regions. PET scans use radioactive tracers to measure brain activity, CAT scans use X-rays to create 3D images of the brain, and CBF (cerebral blood flow) methods use various techniques to measure blood flow in the brain but do not involve a magnetic field and radio waves.

In _______, the Person Lies in a Powerful Magnetic Field