Diagnostic tests

An electroencephalogram records the brain’s electrical activity through small sensors placed on the scalp.

Video EEG pairs continuous EEG recording with synchronized video so that physicians can correlate brain activity with physical events, which helps characterize seizures and similar episodes..

Nerve conduction studies measure how quickly signals travel along nerves; electromyography evaluates the electrical activity of muscles.

The vestibular autorotation test (VAT) measures how well the eyes and inner-ear balance system work together during active head movement.

Transcranial Doppler is a painless ultrasound that measures blood flow in the brain’s major arteries.

Brief standardized cognitive screens such as the Mini-Mental State Examination evaluate memory, attention, language and orientation.