EEG
An EEG, also called electroencephalogram, is a test that records the
electrical activity of your brain.
The night before your test:
!
Do not sleep.
!
Sleep only half the amount of time that you sleep other nights. For
example, if you sleep 8 hours a night, sleep 4 hours the night before your
test.
!
Sleep as much as you want.
Arrive on time for your test. Plan on being here about 2 hours.
To Prepare
• Avoid caffeine drinks such as coffee, tea, and soft drinks after midnight
before the test.
• Be sure your hair is clean and dry and free from oils, sprays, and lotions.
During the Test
• Small pads called electrodes are put on your scalp with paste. The pads
read the electrical activity of your brain and send it to a machine. You
will feel no pain.
• During the test you may:
─ Sleep
─ Be asked to breathe deep and fast through your mouth
─ Be shown a flashing light for a short time