title: Minimization of cochlear implant stimulus artifact in cortical auditory evoked potentials.
abstract: OBJECTIVE
  To compare two methods of minimizing cochlear implant artifact in cortical auditory evoked potential (CAEP) recordings.
  
  
  METHODS
  Two experiments were conducted. In the first, we assessed the use of independent component analysis (ICA) as a pre-processing filter. In the second, we explored the use of an optimized differential reference (ODR) for minimizing artifacts.
  
  
  RESULTS
  Both ICA and the ODR can minimize the artifact and allow measurement of CAEP responses.
  
  
  CONCLUSIONS
  When using a large number of recording electrodes ICA can be used to minimize the implant artifact. When using a single electrode montage an optimized differential reference is adequate to minimize the artifact.
  
  
  CONCLUSIONS
  The use of an optimized differential reference could allow cortical evoked potentials to be used in routine clinical assessment of auditory pathway development in children and adults fit with cochlear implants.
authors.affiliation: School of Behavioral and Brain Sciences, Callier Advanced Hearing Research Center, The University of Texas at Dallas, 1966 Inwood Road, 75235, USA. pgilley@utdallas.edu
authors.forename: Phillip M
authors.initials: PM
authors.lastname: Gilley
authors.forename: Anu
authors.initials: A
authors.lastname: Sharma
authors.forename: Michael
authors.initials: M
authors.lastname: Dorman
authors.forename: Charles C
authors.initials: CC
authors.lastname: Finley
authors.forename: Arunachalam S
authors.initials: AS
authors.lastname: Panch
authors.forename: Kathryn
authors.initials: K
authors.lastname: Martin
mesh_terms: D016477:Artifacts; D001303:Auditory Cortex / Q000502:physiology*; D001931:Brain Mapping; D002648:Child; D002675:Child, Preschool; D003054:Cochlear Implants; D004566:Electrodes; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D006801:Humans