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EEG
measures the brain’s electrical activity through electrodes placed on the scalp. It shows brainwave patterns in real time
fMRI
A brain imaging method that measures blood flow and oxygen use in the brain to detect activity.
MEG
A technique that measures the magnetic fields created by electrical activity in the brain.
CT
A brain scan that uses X-rays to make detailed images of brain structures. It shows injuries, tumors, or abnormalities but does not show brain activity..
PET
A scan that uses a radioactive tracer to measure glucose use in the brain.