Login
Communauté Vinci
Extérieur
Si votre nom d'utilisateur ne se termine pas par @vinci.be ou @student.vinci.be, utilisez le formulaire ci-dessous pour accéder à votre compte de lecteur.
Titre : | Full-array channel discrimination in cochlear implants: validation and clinical application (2023) |
Auteurs : | Coen A. A. Windmeijer, Auteur ; Jan Dirk Biesheuvel, Auteur ; Peter Paul B.M. Boermans, Auteur ; Jeroen J. Briaire, Auteur ; Johan H.M. Frijns, Auteur |
Type de document : | Article |
Dans : | International Journal of Audiology IJA (Vol. 62, n° 10, October 2023) |
Article en page(s) : | p. 992-1001 |
Note générale : | https://doi-org.ezproxy.vinci.be/10.1080/14992027.2022.2101028 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Discrimination auditive ; Implants cochléaires ; Perception de la parole ; Psychophysique |
Mots-clés: | réseau d'électrodes |
Résumé : |
Objective
We sought to validate our proposed tool for estimating channel discrimination of cochlear implant (CI) users along the full electrode array and to assess associations between place-pitch discrimination and speech perception. Design In two tests, participants identified one stimulus (probe) as the odd-one-out compared with two reference stimuli. Probe stimuli were evoked using dual electrode stimulation characterised by the current steering coefficient α. The first test measured psychometric functions (PFs) on pre-defined contacts, with just a noticeable difference (JNDα) as the outcome variable. The second test estimated channel discrimination on the full electrode array, yielding a discrimination score of Dα. We measured speech perception as free-field consonant-vowel-consonant phoneme recognition scores. Study sample We included 25 adults with at least 6 months of CI experience. Results JNDα and Dα scores measured on the same contact correlated significantly (rs = 0.64, p Conclusions Dα correlated strongly with JNDα scores obtained with the PFs. For poor performers, the full-array test may underestimate JNDα. The full-array pitch discrimination test could be a helpful clinical tool, such as for fitting regions of lesser pitch discrimination ability. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.tandfonline.com/doi/full/10.1080/14992027.2022.2101028 |