Comprehensive
Neurology Clinic

Providing expert diagnosis and
management of neurological disorders
in adults and children.

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Electroencephalogram (EEG)


Routine | Sleep Deprived | Long-term Video | Ambulatory

electroencephalograph office
The electroencephalograph (EEG) is a safe painless procedure that uses a machine to translate the electrical activity of the brain into a series of wavy lines. It is used to find out if there is any abnormality in the electrical function of the brain.

The EEG machine can detect electrical abnormalities in the brain but can not read your mind. Your head will be measured and marked with a wax pen to identify the locations to place electrodes. Electrodes or leads are small metal disks that are attached to your scalp with a special paste or glue. Depending on the possible diagnosis needed, the technologist may ask you to breathe deeply through your mouth for a short time, which can produce a slightly dizzy feeling or numbness in the hands or feet. This will go away when you begin to breath normally again. A strobe light may be flashed into your eyes, or you may be asked to open, and close your eyes a few times. You may be asked to sleep or to do other simple tasks. We do these individualized tasks to help diagnose your specific problem.

Routine EEG

Total preparation and test duration: approximately 2 hours

Preparation instructions:

Sleep deprived EEG

Total preparation and test duration: approximately 2 hours

Preparation instructions:

Long-term Video EEG

Preparation time: 45-60 minutes

Test duration: 24-72 hours

Preparation instructions:

Ambulatory EEG

Preparation time: 60-90 minutes

Test duration: 24-72 hours

Preparation instructions:

Symptoms of a seizure disorder:

  • Passing out/Loss of consciousness
  • Staring spells
  • Deterioration of school performance
  • Involuntary movements, jerking, trembling, stiffness, limpness, fluttering eyelids, twitching
  • Unusual sensations (aura), such as abnormal smells or tastes, butterflies in the stomach, feeling of déjà vu
  • Change in speech, such as temporary inability to speak or uttering meaningless words
  • Episodic Confusion

    Symptoms of a sleep disorder:

  • Daytime sleepiness
  • Difficulty concentrating
  • Fatigue
  • Gasping or choking at night
  • Headaches
  • Memory loss
  • Snoring
  • Waking multiple times per night

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