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CT
scan thats just an x ray
MRI
uses magnetic fields and radio waves to make a picture of the brain, its regions, and shows abnormalities
fMRI
measures brain activity by detecting changes assc. W/ blood flow
EKG/ECG
scan measuring electric activity of heart
EEG
scan measuring brain electrical activity using electrodes placed on the scalp
PET scans
scan uses radioactive insertion to show image of metabolic and biochemical functions of brain regions