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Medientyp:
E-Artikel
Titel:
Effect of experimentally introduced interaural frequency mismatch on sentence recognition in bilateral cochlear-implant listeners
Beteiligte:
Cleary, Miranda;
DeRoy Milvae, Kristina;
Nguyen, Nicole;
Bernstein, Joshua G. W.;
Goupell, Matthew J.
Erschienen:
Acoustical Society of America (ASA), 2023
Erschienen in:
JASA Express Letters, 3 (2023) 4
Sprache:
Englisch
DOI:
10.1121/10.0017705
ISSN:
2691-1191
Entstehung:
Anmerkungen:
Beschreibung:
Bilateral cochlear-implant users experience interaural frequency mismatch because of asymmetries in array insertion and frequency-to-electrode assignment. To explore the acute perceptual consequences of such mismatch, sentence recognition in quiet was measured in nine bilateral cochlear-implant listeners as frequency allocations in the poorer ear were shifted by ±1.5, ±3, and ±4.5 mm using experimental programs. Shifts in frequency allocation >3 mm reduced bilateral sentence scores below those for the better ear alone, suggesting that the poorer ear interfered with better-ear perception. This was not a result of fewer active channels; deactivating electrodes without frequency shifting had minimal effect.