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Related Experiment Videos

Ipsilateral ABR with cochlear implant

S Gallego1, C Micheyl, C Berger-Vachon

  • 1CNRS URA 1447, Edouard Herriot Hospital U, Lyon, France.

Acta Oto-Laryngologica
|March 1, 1996
PubMed
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A new ipsilateral auditory brainstem response (ABR) recording technique for the MXM DIGISONIC DX10 cochlear implant was developed. This method enhances recording quality, allowing characterization of ABRs in relation to stimulus parameters.

Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Audiology

Background:

  • Auditory brainstem response (ABR) recordings are crucial for assessing auditory pathway function.
  • Ipsilateral ABR recordings in cochlear implant users present unique technical challenges.
  • Previous studies primarily focused on contralateral ABRs or ipsilateral ABRs in animal models.

Purpose of the Study:

  • To develop and validate an ipsilateral ABR recording technique for the MXM DIGISONIC DX10 cochlear implant.
  • To characterize ABR parameters (latency, amplitude, reproducibility) in relation to stimulus intensity and electrode site.
  • To compare findings with existing contralateral human and ipsilateral animal ABR data.

Main Methods:

  • Optimized recording variables considering cochlear implant and ABR constraints.

Related Experiment Videos

  • Employed signal processing techniques to enhance ABR recording quality.
  • Systematically varied stimulus intensity and stimulation site (electrode) to assess ABR characteristics.

    • Main Results:

    • The developed technique yielded high-quality ABR recordings.
    • Wave III and V amplitude showed a positive correlation with stimulus intensity.
    • Wave III and V latency remained consistent across different stimulus intensities and electrode sites.
    • ABR quality decreased with basal stimulation.

    Conclusions:

    • The developed ipsilateral ABR technique is effective for the MXM DIGISONIC DX10 cochlear implant.
    • ABR amplitude and latency characteristics are influenced by stimulus intensity, consistent with literature.
    • The technique provides valuable insights into auditory pathway function in cochlear implant users.