Purpose: Investigate monaural and binaural hearing in electric-acoustic stimulation (EAS) users with place-based versus default maps. Participants: Cochlear implant recipients and normal-hearing listeners Procedures (methods): This is a prospective, longitudinal investigation of the monaural and binaural outcomes (such as speech perception, spatial hearing, and/or subjective benefit) of cochlear implant recipients listening with different programs. The programs will incorporate different patient and device variables to determine the effect on cochlear implant recipient outcomes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
39
Adjusting the electric frequency filters to align with the cochlear place frequency
Default frequency filter assignments
UNC ENT at Carolina Crossing
Chapel Hill, North Carolina, United States
Monaural Perception for Participants With Cochlear Implants (Arms 1 and 2) Over Time
Monaural perception (e.g., word recognition in quiet) will be assessed at defined intervals (e.g., activation, and 1, 3, 6, and 12 months post-activation). Performance (e.g., percent correct) will be compared within-subject and between group over the study intervals. This procedure is specific to Arm 1 (participants with default maps) and Arm 2 (participants with place-based maps).
Time frame: Up to 12 months post-activation
Binaural Hearing Abilities Over Time (Noise to the Study Ear Minus Noise From the Front)
Binaural hearing abilities (e.g., spatial release from masking) will be assessed at defined intervals (e.g., 1, 3, 6, and 12 months post-activation). Performance (e.g., percent correct) will be compared within-subject and between group over the study intervals. This procedure is specific to Arm 1 (participants with default maps) and Arm 2 (participants with place-based maps).
Time frame: Up to 12 months post-activation
Binaural Hearing Abilities Over Time (Noise to the Non-study Ear Minus Noise From the Front)
Binaural hearing abilities (e.g., spatial release from masking) will be assessed at defined intervals (e.g., 1, 3, 6, and 12 months post-activation). Performance (e.g., percent correct) will be compared within-subject and between group over the study intervals. This procedure is specific to Arm 1 (participants with default maps) and Arm 2 (participants with place-based maps).
Time frame: Up to 12 months post-activation
Perceived Abilities Over Time
Perceived abilities will be assessed with questionnaires (e.g., Speech, Spatial, and Qualities of hearing scale; SSQ) at defined intervals (e.g., activation, and 1, 3, 6, and 12 months post-activation). A subject indicates his/her perceived abilities for each question on the SSQ using a Likert scale, with a range of 0-10 (with 10 indicating better perceived abilities). Responses will be compared between group over the study intervals. This procedure is specific to Arm 1 (participants with default maps) and Arm 2 (participants with place-based maps).
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Time frame: Up to 12 months post-activation