What Is An Electroencephalogram (EEG)?

An electroencephalogram (EEG) is a test that measures and records the electrical activity of your brain. Special sensors are attached to your scalp to monitor your brain's electrical activity and transmitted to a polygraph. It is a painless test used to diagnose sleep disorders, such as narcolepsy.

What to Expect

Your Sleep Technologist will be at our site to greet you when you arrive. After you make yourself comfortable, your Technologist will take a brief history, explain the testing procedure, and answer any questions you may have prior to applying the sensors for your study. This procedure is completely painless and generally takes about 40 minutes to make sure everything is placed correctly.

After all the sensors are applied and checked, the technologist will do a few tests that may include fast, deep breathing (hyperventilation), as well as strobe light testing (photic stimulation). When these tests are done, you’ll be asked to lay still with your eyes closed, and try to fall asleep. You will be monitored remotely--no one will be in your room watching you.

When the study is done, the technologist will wake you and remove the wires and sensors. You will then be able to take a shower (at certain locations) and be on your way.

For the most accurate testing:

  • Wash your hair thoroughly but do not use conditioners or other hair products
  • Remove any hair weaves or extensions
  • Bring – and take – all of your normally scheduled medications unless otherwise directed by your doctor or the staff at Sleep Insights
  • Notify us of any special needs prior to your arrival. If you are supervising a child or older patient who is having a sleep test, we have rooms equipped with an additional bed. Please let us know in advance if you need special accommodations.
  • Neither smoking nor alcohol is allowed in the building or on the premises at any time
  • Failure to show up for your scheduled procedure will result in a $100.00 no-show charge

Please call our main site at (585) 385-6070, your local site or contact us if you have any questions.