Towards optogenetic cortical implants for hearing impaired

Ryan Greer, Yunzhou Cheng, Niall McAlinden, Antonin Verdier, Brice Bathellier, Keith Mathieson

Research output: Contribution to conferencePoster


The tonotopic arrangement of the auditory cortex is well known and gives rise to the possibility of restoring hearing by stimulating spatial regions of the brain surface. This would elicit the neuronal signalling associated with the perception of certain sound frequencies.
Recent work in the mouse cortex has shown that optogenetic cortical stimulation has the capability to overcome limitations with perceived frequency resolution in patients with cochlear implants [1]. Cortical stimulation devices could also benefit patients who are missing the acoustic nerve or have a malformed cochlea and are unable to benefit from cochlear implants.
As part of the HearLight consortium [2], we are developing a cortical implant to explore restoration of hearing through direct optogenetic stimulation of distinct regions of the mouse cortex.
Original languageEnglish
Publication statusPublished - 13 Jul 2022
EventEMBC 2022: 44th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Glasgow, United Kingdom
Duration: 11 Jul 202215 Jul 2022


ConferenceEMBC 2022
Abbreviated titleEMBC 2022
Country/TerritoryUnited Kingdom
Internet address


  • optogenetic cortical implants
  • mouse cortex
  • hearing restoration


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