EEG (Electroencephalogram)

An electroencephalogram (EEG) is a test that measures electrical activity in the brain. Small sensors, called electrodes, are placed on the scalp to detect these electrical signals, which reflect brain activity during various mental states. EEGs are often used in medical settings to diagnose conditions such as epilepsy, sleep disorders, and brain injuries. The resulting data is displayed as wavy lines on a monitor, helping doctors understand brain function and identify any abnormalities. EEGs are non-invasive, meaning they don’t require surgery or penetrating the skin, making them a safe method for assessing brain health.