Hearing Loss, Bilateral
Conditions
Brief summary
The goal of this clinical study is to investigate the benefits of hearing instrument use in adults with hearing loss. The main questions it aims to answer are: Does hearing instrument use improve speech understanding and listening effort amount people with hearing loss? Researchers will compare varying models of hearing instruments to see how speech understanding and listening effort are impacted. Participants will be asked to wearing varying hearing instruments and participate in lab-based activities to evaluate their speech understanding, listening effort, and subjective preference.
Interventions
DEVICEhearing instruments
Participants will be fit with three different models of hearing instruments.
Sponsors
University of South Florida
Sonova AG
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Masking description
The participant will not know which condition they are being tested in, but all participants will be given the same intervention and not blinded to the intervention.
Eligibility
Sex/Gender
ALL
Age
18 Years to 95 Years
Healthy volunteers
No
Inclusion criteria
* Adult 18-95 years * N3 or N4 hearing loss * Experienced hearing aid user * English fluency * Cognitively able to complete complex listening tasks
Exclusion criteria
* Outside of specified age range * Vulnerable populations * Hearing within normal limits or otherwise not appropriate for hearing instruments under study * Inability to read, write, or speak English * Inability to complete complex listening tasks
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Speech intelligibility as assessed by the Coordinate Response Measure (CRM) Task | Data is collected during the second lab visit for each participant, approximately 2 weeks after study enrollment. The duration of the study visit including testing is approximately 2.5 hours. | During the CRM task (Bolia et al., 2000), participants are presented with a phrase detailing the following identifiers: target, color, and digit. They must listen for a target name and respond with the corresponding color and digit. Speech intelligibility performance is assessed based on accuracy, or percent correct across all trials conducted in a given condition. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Listening Effort as assessed by the Adaptive Categorical Listening Effort Scaling (ACALES) | Data is collected during the second lab visit for each participant, approximately 2 weeks after study enrollment. The duration of the study visit including testing is approximately 2.5 hours. | The ACALES is an adaptive measure of listening effort where the target and interfering background signals are adapted according to participant feedback. Following the target presentation, participants rate listening effort on a 14-point scale |
Other
| Measure | Time frame | Description |
|---|---|---|
| Hearing Instrument Device Preference Questionnaire | Data is collected during the second lab visit for each participant, approximately 2 weeks after study enrollment. The duration of the study visit including testing is approximately 2.5 hours. | Participants are asked to subjectively rate elements of sound quality and overall preference of the devices under test following standardized presentation of speech-in-noise stimuli in the lab environment. |
Countries
United States
Contacts
Primary ContactStudy Coordinator
Outcome results
None listed