What are the possible causes for an abnormal eeg?

An EEG is a test that an EEG technologist performs to assess neurological conditions such as epilepsy, dementia, and others.

Doctors can also use it to understand the brain’s activity after a brain trauma such as a head injury or brain tumor.

An EEG looks at what is happening in the brain for the duration of the test rather than the brain’s physical structure.

To perform the EEG, the technologist attaches electrodes to the person’s head, which picks up electrical signals from the brain’s cells.

A computer records these signals and shows the electrical activity of the brain.

The electrodes attach to different parts of the head to locate precisely where activity is happening.

Can eeg detect brain tumor

An EEG is painless and safe.

A routine EEG procedure usually lasts 1 hour, including preparation before the test and 20–40 minutes of recording a person’s brain activity. There are several types of EEGs that have varying lengths.

Doctors use EEGs alongside other tests to build a complete picture of a person’s condition.

The following sections outline

what does an eeg show in babies

what does an eeg show for epilepsy