A PET scan:
A) records brain waves through electrodes taped to the scalp.
B) stimulates the brain by producing a magnetic field through a wire coil.
C) records biochemical changes in the brain as they are happening.
D) uses radio frequencies and a magnetic field to produce images of the brain.

Question

Quizplus · Accepted Answer

A PET scan, or Positron Emission Tomography, records biochemical changes in the brain as they are happening by injecting a small amount of radioactive tracer into the bloodstream. As the tracer travels through the body, the PET scanner detects the gamma rays emitted by it and creates a 3D image of the brain activity.

A PET Scan