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.
Related terms
fMRI: fMRI (functional Magnetic Resonance Imaging) is another neuroimaging technique that measures changes in blood flow to determine brain activity.
EEG: EEG (Electroencephalogram) is a non-invasive technique that records electrical activity generated by neurons using electrodes placed on the scalp.
CT scans: CT (Computed Tomography) scans use X-rays to create detailed cross-sectional images of the body or brain.