Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Active regions refer to the specific areas of the brain that are involved and engaged during a particular cognitive task or mental process.
Related terms
Functional Magnetic Resonance Imaging (fMRI): This brain scanning technique uses magnetic fields to track changes in blood flow, allowing researchers to identify active regions of the brain during different mental processes.
Positron Emission Tomography (PET) Scan: A PET scan involves injecting a small amount of radioactive substance into the bloodstream, which then highlights areas with increased metabolic activity, providing information about active regions.
An EEG measures electrical activity in the brain through electrodes placed on the scalp, providing real-time information about brain wave patterns and identifying active regions.