Cochlear implant electrode deactivation produces inconclusive and strategy-dependent results
Evidence
The findings from different deactivation studies are inconclusive, partly due to the difficulties of comparing experimental to clinical maps that the CI users had adapted to and partly due to the impact that deactivating channels can have on other factors (e.g. rate of stimulation; filter-frequency allocation) which differ between devices and sound processing strategies. There is a trend suggesting that deactivating electrodes may be less effective for ACE or SPEAK users than for the CIS based sound processing strategies incorporated in AB or MEDEL devices. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2060
Categorization
Category: Factual Claims
- XREF: Relevant to the reader’s interest in how signal-processing strategy interacts with perceptual outcomes in cochlear implant users.
Related
- Electrode deactivation benefits depend on the sound processing strategy used. (similarity 0.90)
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- Deactivating pitch-redundant electrodes may benefit some implant users but not others (similarity 0.88)
- N-of-m cochlear processing strategies resist benefit from electrode deactivation (similarity 0.88)
- Deactivating pitch-indiscriminable cochlear implant electrodes yields no speech benefit (similarity 0.88)
- Cochlear device users benefit less from electrode deactivation than AB and MEDEL users (similarity 0.88)
- Deactivating cochlear electrodes with indistinct pitch responses improves speech perception for most users (similarity 0.87)
- Electrode deactivation outcomes depend on stimulation rate and filter allocation differences (similarity 0.87)
- Deactivating multiple implant electrodes can worsen frequency information transmission (similarity 0.87)
- Deactivating indiscriminable implant electrodes fails to improve and even worsens perception (similarity 0.87)
- Deactivating electrodes can shift frequency-to-electrode mapping and worsen perception (similarity 0.87)
- Electrode deactivation benefits CIS users more than ACE or SPEAK users (similarity 0.87)
- Deactivating non-distinct cochlear implant electrodes fails to improve speech perception (similarity 0.87)
- Deactivating an electrode shifts frequency-to-electrode allocation and can negate expected benefits. (similarity 0.87)
- Pitch-ranking can identify which cochlear implant electrodes are safe to deactivate (similarity 0.86)