What is EEG Test ?

An Electroencephalogram (EEG) is a non-invasive medical test that measures the electrical activity of the brain. It's commonly used to:

Diagnose and Monitor Neurological Conditions

1. Seizures and Epilepsy: EEG helps diagnose and monitor seizure activity.
2. Sleep Disorders: EEG is used to diagnose sleep disorders, such as narcolepsy.
3. Brain Injuries: EEG helps assess the severity of brain injuries, such as concussions.
4. Neurodegenerative Diseases: EEG is used to monitor conditions like Alzheimer's and Parkinson's.

How EEG Works

1. Electrodes: Small electrodes are placed on the scalp to record electrical activity.
2. Brain Waves: The electrodes detect brain waves, which are electrical impulses in the brain.
3. Signal Recording: The brain waves are recorded and displayed as waveforms on an EEG machine.

Types of EEG Tests

1. Routine EEG: A standard EEG test, usually lasting 20-30 minutes.
2. Sleep EEG: An EEG test conducted during sleep to diagnose sleep disorders.
3. Video EEG: A prolonged EEG test, often used to monitor seizure activity.