Deactivating multiple cochlear implant electrodes can worsen rather than improve hearing

Evidence

If a poor ENI arises due to an underlying neural dead region, the transmission of information in that frequency channel could be impeded; if a poor ENI arises due to the presence of broad electrical fields, this will lead to corruption of channel specific information. For both cases it could be beneficial to deactivate electrodes, however when doing so frequency information is re-allocated to other electrodes making analysis bands broader and distorting frequency-to-electrode mapping. These effects are small for individual electrode deactivation but can be substantial for deactivation of multiple electrodes, potentially resulting in poorer precision of information transmission; a completely opposite effect to that intended. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2051

Categorization

Category: Causal Relationships

Related

• Deactivating multiple electrodes can worsen rather than improve information precision. (similarity 0.91)
• Cochlear implant re-mapping deactivates poorly placed electrodes to improve spectral resolution. (similarity 0.90)
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• Deactivating multiple implant electrodes can worsen frequency information transmission (similarity 0.88)
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