Evoked Potential Brain Mapping/Testing in Virginia | Sentara Healthcare
You have saved None as your preferred region Undo or Change Region
Hampton Roads
Login for:
Go Search
Home Services Neurosciences Diagnosis and Treatment Evoked Potential Brain Mapping/Testing

Evoked Potential Brain Mapping/Testing 

Skip navigation links
Sentara Neurosciences
Neurology Services
Stroke Program
Epilepsy Program
Parkinson's Disease Program
Diagnosis and Treatment
Clinical Trials and Research
Sentara Music and Medicine Center
Sentara Neuromuscular and Autonomic Center
Patient Education and Resources
Find a Neurology Physician
Neuro Physician Education
Neuromuscular Program
Movement Disorders
Sentara Neurosurgery Specialists

What is it?
Evoked potentials are used to diagnose diseases of the nervous system, such as multiple sclerosis. They can give important information about the brain and spinal cord, and about the nerve pathways leading to it from the eyes and ears.

How is the test performed?
If light is flashed in the eye or a small electrical pulse given to the skin over a nerve in an arm or leg, a characteristic response - the evoked potential - can be recorded from the brain using electrodes placed on the scalp.

There will be a very short delay - measured in fractions of a second - between the delivery of the stimulus and the appearance of the electrical response in the brain. This delay corresponds to the time that it takes for the signal to pass from the eye or skin to the brain, along the nerve pathways.

Three types of evoked potential testing are commonly used: visual evoked potentials, auditory evoked potentials and somatosensory evoked potentials.

What can the test tell my doctor?
If there is a delay in the appearance of the evoked potential in the brain, this may mean that something is wrong somewhere in the nerve pathways.

Are there risks?
An evoked potential test has no lasting effects and will not have an impact on any of your regular activities. Your doctor will advise you of the test results after they have been read and analyzed.

-- Milton S. Hershey Medical Center College of Medicine
-- Brain and Spine Foundation Online

Contact Us
Get Social with Sentara Sentara on Facebook Sentara on Twitter Sentara on Flickr Sentara on FourSquare Sentara Today Blog Sentara on YouTube
Your community, not-for-profit health partner.
Copyright © 2015 Sentara Healthcare.
Contact Us   About Sentara Healthcare   Privacy Policy   User Agreement   Mobile Site