Font Size

Electroencephalography (EEG) (cont.)

EGG Results

When the EEG is finished, the results are interpreted by a neurologist (a doctor who specializes in the nervous system). The EEG records the brain waves from various locations in the brain. Each area produces a different brain wave strip for the neurologist to interpret.

  • When examining the recordings, the neurologist looks for certain patterns that represent problems in a particular area of the brain.
    • For example, certain types of seizures have specific brain wave patterns that the trained neurologist recognizes.
    • Likewise, a normal brain has a specific brain wave pattern that the trained neurologist recognizes.
    • The neurologist must look at all recorded tracings, decide what is normal and what is not, and determine what the abnormal tracings represent.
  • The neurologist forwards the EEG results to the doctor who ordered the test, and the patient is then notified as arranged.

Medically reviewed by Jon Glass, MD; American board of Psychiatry and Neurology


Aminoff, Michael J. Electrodiagnosis in Clinical Neurology. 3rd ed. Harcourt Health Sciences Group, 1992.

Emerson, R. G. and T. A. Pedley. Neurology in Clinical Practice Vol. 1. Butterworth-Heinemann, 2000.

Luders, H. and S. Noachtar. Atlas and Classification of Electroencephalography. WB Saunders, 1999.

Niedermeyer, E. and F. L. Da Silva. Electroencephalography: Basic Principles, Clinical Applications and Related Fields. Lippincott Williams & Wilkins, 1999.

Medically Reviewed by a Doctor on 12/4/2014

Must Read Articles Related to Electroencephalography (EEG)

Cerebral Palsy
Cerebral Palsy Cerebral palsy (CP) is an umbrella term for a group of disorders affecting body movement, balance, and posture. Loosely translated, cerebral palsy means "brain ...learn more >>
Coma Coma is a state of unconsciousness in which the pati...learn more >>
Sleep Apnea (Obstructive and Central)
Obstructive and Central Sleep Apnea There are two types of sleep apnea, obstructive sleep apnea (the most common type) and central sleep apnea. Sleep apnea can be caused by many factors such as st...learn more >>

Patient Comments & Reviews

The eMedicineHealth doctors ask about Electroencephalography (EEG):

Electroencephalography (EEG) - Experience

Describe your experience with an EEG.

EEG - Results

What did your EEG results reveal?

Read What Your Physician is Reading on Medscape

Normal EEG Variants »

The phrases "electroencephalogram (EEG) variant waves" or "normal EEG variants" refer to waves that are rare or unusual but not generally abnormal.

Read More on Medscape Reference »

Medical Dictionary