In the cochlear implant, the RF link( antennas present in the internal and external unit) are used for DC power supply and data transmission. So, my question is related to the data transmitted. What kind of measurements/ actions are reported through the surgically implanted cochlear aid in patients? Is there some kind of electrochemical analysis performed through the platinum/ gold electrode array channels?
To my knowledge, they send back the responses of the stimulated neurons (e.g the paper of Shallop et al. 1999 - Neural Response Telemetry With the Nucleus CI24M Cochlear Implant). They found that these responses correspond to some behaviour measures like threshold and comfort levels. In the clinical practice, I am not aware of electrochemical analysis of the cochlear by the electrodes. However, there is some research going on, but I do not know details.
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