Modeling ECAP in cochlear implants using the FEM and equivalent circuits

T.m. Choi*, Shao Po Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Evoked compound action potential (ECAP) has been used clinically to determine whether auditory nerves are responding to electrical stimulation in cochlear implant systems. In this paper, a novel scheme is proposed to model ECAP and its measurement using a generalized Schwarz-Eikhof-Frijns nerve model and equivalent circuits based on the finite-element (FE) method. A 3-D FE model of a cochlear implant is used in this scheme. The ECAP modeling result is validated with clinical ECAP measurement results.

Original languageEnglish
Article number6748935
JournalIEEE Transactions on Magnetics
Issue number2
StatePublished - 1 Feb 2014


  • Coupling circuits
  • electrical stimulation
  • equivalent circuits
  • evoked compound action potential (ECAP)
  • finite element method (FEM)
  • generalized Schwarz-Eikhof-Frijns (GSEF) model


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