Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
PET scans, or Positron Emission Tomography scans, are a neuroimaging technique that uses radioactive tracers to measure brain activity. It shows the metabolic processes happening in the brain by detecting levels of glucose uptake.