PET scan: A neuroimaging technique that involves injecting radioactive glucose into the bloodstream and using a special camera to create images showing areas of high metabolic activity in the brain.
Radioactive glucose: A type of glucose molecule that has been labeled with a radioactive tracer. It is used in neuroimaging techniques like PET scans to track metabolic activity in the brain.
Metabolic activity: Refers to chemical processes happening within cells that involve energy production and consumption. In neuroimaging, it is used as an indicator of brain function and activity levels.