This study will examine experienced, bimodal cochlear implant (CI) patients who receive an alternative frequency allocation table (FAT) to determine how it improves sound quality, device satisfaction, and speech perception abilities with respect to the standard default FAT. The goal of this study is to investigate how improving place-pitch mismatch in bimodal CI users affects 1) sound quality, 2) satisfaction, and 3) speech perception.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
13
The modified cochlear implant program ("experimental FAT") changes which frequencies are presented to the cochlear implant. The experimental FAT frequency of 438 Hz will be loaded onto the subjects processor via the CI Select Mobile App. Subjects will use the experimental FAT for one month.
All subjects will retain one program with the standard 188 Hz FAT. Subjects will use the standard FAT for one month.
NYU Langone Health
New York, New York, United States
RECRUITINGSound Quality Questionnaire Score while using standard 188 Hz FAT
A questionnaire will be given to the subjects to record their subjective thoughts regarding sound quality and satisfaction with both the experiment FAT and the standard FAT. Questionnaires will be administered double blind. Patients evaluate the 16-item questionnaire using a likert-scale (1-strongly disagree to 5-strongly agree). Lower scores indicate decreased sound quality and satisfaction, while higher scores indicate increased sound quality and satisfaction.
Time frame: Baseline
Sound Quality Questionnaire Score while using experimental 438 Hz FAT
A questionnaire will be given to the subjects to record their subjective thoughts regarding sound quality and satisfaction with both the experiment FAT and the standard FAT. Questionnaires will be administered double blind. Patients evaluate the 16-item questionnaire using a likert-scale (1-strongly disagree to 5-strongly agree). Lower scores indicate decreased sound quality and satisfaction, while higher scores indicate increased sound quality and satisfaction.
Time frame: Behavioral Visit 2 (1 month post 438 Hz FAT adaptation)
Sound Quality Questionnaire Score while using standard 188 Hz FAT
A questionnaire will be given to the subjects to record their subjective thoughts regarding sound quality and satisfaction with both the experiment FAT and the standard FAT. Questionnaires will be administered double blind. Patients evaluate the 16-item questionnaire using a likert-scale (1-strongly disagree to 5-strongly agree). Lower scores indicate decreased sound quality and satisfaction, while higher scores indicate increased sound quality and satisfaction.
Time frame: Behavioral Visit 3 (1 month post 188 Hz FAT re-adaptation)
The consonant-nucleus-consonant (CNC) word list score while using standard 188 Hz FAT
CNC word lists are used to evaluate the speech perception abilities of people with hearing impairments and cochlear implant users. A CNC score above 50% postoperatively indicates that a patient can communicate without relying too much on lip reading, sign language, or written communication.
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Time frame: Baseline
CNC word list score while using standard 188 Hz FAT
CNC word lists are used to evaluate the speech perception abilities of people with hearing impairments and cochlear implant users. A CNC score above 50% postoperatively indicates that a patient can communicate without relying too much on lip reading, sign language, or written communication.
Time frame: Behavioral Visit 2 (1 month post 438 Hz FAT adaptation)
CNC word list score while using standard 188 Hz FAT
CNC word lists are used to evaluate the speech perception abilities of people with hearing impairments and cochlear implant users. A CNC score above 50% postoperatively indicates that a patient can communicate without relying too much on lip reading, sign language, or written communication.
Time frame: Behavioral Visit 3 (1 month post 188 Hz FAT re-adaptation)
CNC word list score while using experimental 438 Hz FAT
CNC word lists are used to evaluate the speech perception abilities of people with hearing impairments and cochlear implant users. A CNC score above 50% postoperatively indicates that a patient can communicate without relying too much on lip reading, sign language, or written communication.
Time frame: Baseline
CNC word list score while using experimental 438 Hz FAT
CNC word lists are used to evaluate the speech perception abilities of people with hearing impairments and cochlear implant users. A CNC score above 50% postoperatively indicates that a patient can communicate without relying too much on lip reading, sign language, or written communication.
Time frame: Behavioral Visit 2 (1 month post 438 Hz FAT adaptation)
CNC word list score while using experimental 438 Hz FAT
CNC word lists are used to evaluate the speech perception abilities of people with hearing impairments and cochlear implant users. A CNC score above 50% postoperatively indicates that a patient can communicate without relying too much on lip reading, sign language, or written communication.
Time frame: Behavioral Visit 3 (1 month post 188 Hz FAT re-adaptation)
Bamford-Kowal-Bench (BKB-SIN) speech-in-noise score using standard 188 Hz FAT
The BKB-SIN speech-in-noise test measures speech perception in noise by assessing a listener's signal-to-noise ratio (SNR) loss. The test results are presented as the SNR loss, which is the amount the signal-to-noise ratio needs to be increased for the listener to correctly repeat 50% of the sentences. A higher SNR loss indicates more difficulty hearing.
Time frame: Baseline
Bamford-Kowal-Bench (BKB-SIN) speech-in-noise score using standard 188 Hz FAT
The BKB-SIN speech-in-noise test measures speech perception in noise by assessing a listener's signal-to-noise ratio (SNR) loss. The test results are presented as the SNR loss, which is the amount the signal-to-noise ratio needs to be increased for the listener to correctly repeat 50% of the sentences. A higher SNR loss indicates more difficulty hearing.
Time frame: Behavioral Visit 2 (1 month post 438 Hz FAT adaptation)
Bamford-Kowal-Bench (BKB-SIN) speech-in-noise score using standard 188 Hz FAT
The BKB-SIN speech-in-noise test measures speech perception in noise by assessing a listener's signal-to-noise ratio (SNR) loss. The test results are presented as the SNR loss, which is the amount the signal-to-noise ratio needs to be increased for the listener to correctly repeat 50% of the sentences. A higher SNR loss indicates more difficulty hearing.
Time frame: Behavioral Visit 3 (1 month post 188 Hz FAT re-adaptation)
Bamford-Kowal-Bench (BKB-SIN) speech-in-noise score using experimental 438 Hz FAT
The BKB-SIN speech-in-noise test measures speech perception in noise by assessing a listener's signal-to-noise ratio (SNR) loss. The test results are presented as the SNR loss, which is the amount the signal-to-noise ratio needs to be increased for the listener to correctly repeat 50% of the sentences. A higher SNR loss indicates more difficulty hearing.
Time frame: Baseline
Bamford-Kowal-Bench (BKB-SIN) speech-in-noise score using experimental 438 Hz FAT
The BKB-SIN speech-in-noise test measures speech perception in noise by assessing a listener's signal-to-noise ratio (SNR) loss. The test results are presented as the SNR loss, which is the amount the signal-to-noise ratio needs to be increased for the listener to correctly repeat 50% of the sentences. A higher SNR loss indicates more difficulty hearing.
Time frame: Behavioral Visit 2 (1 month post 438 Hz FAT adaptation)
Bamford-Kowal-Bench (BKB-SIN) speech-in-noise score using experimental 438 Hz FAT
The BKB-SIN speech-in-noise test measures speech perception in noise by assessing a listener's signal-to-noise ratio (SNR) loss. The test results are presented as the SNR loss, which is the amount the signal-to-noise ratio needs to be increased for the listener to correctly repeat 50% of the sentences. A higher SNR loss indicates more difficulty hearing.
Time frame: Behavioral Visit 3 (1 month post 188 Hz FAT re-adaptation)