What is the minimal montage recommended by the AEEGS for recording of upper limb somatosensory evoked potentials (SEPs)?

Updated: Feb 26, 2019
  • Author: Sombat Muengtaweepongsa, MD, MSc; Chief Editor: Selim R Benbadis, MD  more...
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Answer

Answer

The minimal montage recommended by the American EEG Society (AEEGS, currently the American Clinical Neurophysiology Society) for recording of upper limb SEPs is as follows:

  • Channel 4 - CPc-Cpi

  • Channel 3 - CPi-EPc

  • Channel 2 - C5S-EPc

  • Channel 1 - EPi-EPc

An example of a median nerve SEP recorded with this montage is shown in the image below.

Normal median nerve somatosensory evoked potential Normal median nerve somatosensory evoked potentials (SEPs) recorded using the minimal (4-channel) recording montage recommended by the American EEG Society (AEEGS) guidelines. Negativity at input 1 is shown as an upward deflection. Courtesy of American Electroencephalographic Society, 1994.

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