Definition

1. Noun:
   • A graphical record of electrical activity of the brain; produced by an electroencephalograph: An EEG is a medical test that measures and records the electrical signals produced by the brain's neurons. The resulting graph, or electroencephalogram, is used by doctors to diagnose conditions like epilepsy, sleep disorders, or brain injuries.

Usage Examples

• Noun:
  • The neurologist ordered an EEG to check for abnormal brain activity.
  • The patient's EEG showed a normal sleep pattern.
  • Interpreting an EEG requires specialized training.

Advanced Usage

• "to have/get an EEG": to undergo the medical procedure of electroencephalography.
  • The child had to have an EEG to investigate the cause of the seizures.
• "EEG monitoring": continuous recording of brain activity, often over a long period.
  • The patient was admitted to the hospital for 24-hour EEG monitoring.
• "EEG findings": the results or data obtained from an EEG test.
  • The EEG findings were consistent with a diagnosis of epilepsy.

Variants and Related Words

• Electroencephalogram (n): The full, formal term for an EEG; the graphical record itself.
  • The electroencephalogram provided a detailed map of brain waves.
• Electroencephalograph (n): The machine or device used to record the EEG.
  • The technician calibrated the electroencephalograph before the test.
• Electroencephalography (n): The technique or process of recording electrical activity of the brain.
  • Electroencephalography is a non-invasive diagnostic tool.

Synonyms

• Brain wave test: An informal term for an EEG.
• Electroencephalogram: The formal, technical synonym.

Related Phrases

• Abnormal EEG: An EEG recording that shows irregular or unexpected brain wave patterns.
  • The abnormal EEG confirmed the doctor's suspicions.
• Normal EEG: An EEG recording that falls within expected parameters for a healthy brain.
  • Fortunately, the test results came back as a normal EEG.

Noun

1. a graphical record of electrical activity of the brain; produced by an electroencephalograph