"An electroencephalogram (EEG) is a recording of brain activity. During this painless test, small sensors are attached to the scalp to pick up the electrical signals produced by the brain. These signals are recorded by a machine and are looked at by a doctor."
"MRI stands for magnetic resonance imaging, a noninvasive medical imaging technique that uses radio waves and a powerful magnet to create detailed images of the inside of the body. MRIs are often used to:
Diagnose disease
Plan treatment
Monitor treatment effectiveness
Image soft tissues, such as tumors or brain disorders
Image organs, bones, muscles, and blood vessels"
Reading is easy. Everyone should read a lot more.
