How are EEG delta waves characterized?

Updated: Oct 09, 2019
  • Author: Roy Sucholeiki, MD; Chief Editor: Selim R Benbadis, MD  more...
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See the list below:

  • These slow waves have a frequency of 3 Hz or less.

  • They normally are seen in deep sleep in adults as well as in infants and children.

  • Delta waves are abnormal in the awake adult.

  • Often, they have the largest amplitude of all waves.

  • Delta waves can be focal (local pathology) or diffuse (generalized dysfunction).

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