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      Cause of pulse artefacts inherent to the electrodes of neuromodulation implants

      Single, Peter; Scott, Jonathan B.
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      CauseOfArtefact_SingleScott.pdf
      Accepted version, 6.128Mb
      DOI
       10.1109/TNSRE.2018.2870169
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      Single, P., & Scott, J. B. (2018). Cause of pulse artefacts inherent to the electrodes of neuromodulation implants. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 26(10). https://doi.org/10.1109/TNSRE.2018.2870169
      Permanent Research Commons link: https://hdl.handle.net/10289/12121
      Abstract
      The current pulses delivered through platinum electrodes by medical implants to recruit neurones give rise to slowly-decaying voltage tails, called "artefacts''. These tails make measurement of evoked potentials following the pulses very difficult. We present evidence to show that in a typical clinical scenario these tails are mostly caused by concentration gradients of species induced in the electrical double layer adsorbed onto the surface of both stimulating and passive electrodes. A compact model is presented that allows simulation of these artefacts. The model is verified against measurements made in saline. This shows that electrode artefacts are an intrinsic property of the conductive electrodes of a lead.
      Date
      2018
      Type
      Journal Article
      Publisher
      Institute of Electrical and Electronics Engineers
      Rights
      This is an author’s accepted version of an article published in the journal: IEEE Transactions on Neural Systems and Rehabilitation Engineering. © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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