Electrode deactivation outcomes depend on stimulation rate and filter allocation differences
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: Causal Relationships
Related
- Electrode deactivation benefits depend on the sound processing strategy used. (similarity 0.93)
- Electrode deactivation worsens spectral resolution despite unchanged stimulation rate (similarity 0.92)
- Deactivating an electrode shifts frequency-to-electrode allocation and can negate expected benefits. (similarity 0.90)
- Electrode deactivation benefits CIS users more than ACE or SPEAK users (similarity 0.89)
- Electrode deactivation reallocates frequencies and can harm rather than help (similarity 0.89)
- Deactivating discriminable electrodes controls whether benefit comes from channel count or pitch quality (similarity 0.89)
- Prior deactivation studies were confounded by adaptation and learning effects. (similarity 0.88)
- Deactivating electrodes can shift frequency-to-electrode mapping and worsen perception (similarity 0.87)
- Cochlear implant electrode deactivation produces inconclusive and strategy-dependent results (similarity 0.87)
- Pitch-based electrode deactivation provides no speech benefit for ACE users (similarity 0.87)
- Deactivating pitch-indiscriminable cochlear implant electrodes yields no speech benefit (similarity 0.87)
- Too few channels were deactivated to demonstrate any speech benefit (similarity 0.87)
- Prior deactivation studies failed to control for adaptation time and learning effects (similarity 0.87)
- Pitch-ranking-based electrode deactivation provides no measurable benefit for ACE implant users. (similarity 0.87)
- Deactivating multiple electrodes can worsen rather than improve information precision. (similarity 0.85)
Broader Connections
- Deactivating discriminable electrodes controls whether benefit comes from channel count or pitch quality
#expands(0.80) — Dijk, Pim van, Physiology, Psychoacoustics and…, 2061