Prior deactivation studies failed to control for adaptation time and learning effects
Evidence
The goal of this research was to explore the impact of electrode deactivation for adult users of the ACE strategy ensuring that participants received sufficient adaptation time with experimental maps and that learning effects were controlled for. Additionally participants’ clinical maps were optimised to ensure comparisons were made with an optimal control condition. A pitch ranking task was used to identify indiscriminable electrodes for deactivation and an additional control condition was included in which discriminable electrodes were deactivated to determine if any benefits observed were due to switching off electrodes with a poor ENI or just due to having fewer channels. — Dijk, Pim van, Physiology, Psychoacoustics and…, 2061
Categorization
Category: Craft and Method
Related
- Prior deactivation studies were confounded by adaptation and learning effects. (similarity 0.99)
- Electrode deactivation outcomes depend on stimulation rate and filter allocation differences (similarity 0.87)
- Electrode deactivation benefits depend on the sound processing strategy used. (similarity 0.87)
- Pitch-ranking-based electrode deactivation provides no measurable benefit for ACE implant users. (similarity 0.86)
- Electrode deactivation reallocates frequencies and can harm rather than help (similarity 0.85)
- Deactivating an electrode shifts frequency-to-electrode allocation and can negate expected benefits. (similarity 0.84)
- Deactivating pitch-indiscriminable cochlear implant electrodes yields no speech benefit (similarity 0.83)
- Cochlear implant electrode deactivation produces inconclusive and strategy-dependent results (similarity 0.83)
- Electrode deactivation benefits CIS users more than ACE or SPEAK users (similarity 0.83)
- Pitch-ranking can identify which cochlear implant electrodes are safe to deactivate (similarity 0.83)
- Cochlear device users benefit less from electrode deactivation than AB and MEDEL users (similarity 0.82)
- Pitch-based electrode deactivation provides no speech benefit for ACE users (similarity 0.81)
- Deactivating electrodes improves consonant but worsens vowel perception in ACE users (similarity 0.81)
- N-of-m stimulation strategies resist improvement from electrode deactivation. (similarity 0.81)
- Deactivating cochlear electrodes with indistinct pitch responses improves speech perception for most users (similarity 0.81)