What is the morphology of EEG V waves?

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

  • V waves are sharp waves that occur during sleep. They are largest and most evident at the vertex bilaterally and usually symmetrically.

  • They show phase reversal at the vertex.

  • V waves tend to occur especially during stage 2 sleep and may be multiple.

  • Often, they occur after sleep disturbances (eg, brief sounds) and, like K complexes, may occur during brief semiarousals.

  • V waves are easy to recognize.

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