EEG stands for electroencephalography, which is a type of brain scan used to measure electrical activity in the brain. It is a non-invasive procedure that uses electrodes placed on the scalp to detect and record electrical signals from the brain. MRI scans (Magnetic Resonance Imaging) are another type of brain scan that can provide detailed images of the brain's structure. CT scans (Computed Tomography) are also used to diagnose brain conditions and injuries. Brain scans are important tools for diagnosing and treating neurological disorders.