N/A
Completed N=78
Clinical Applications for Time-Compressed Speech Tests
Source: ClinicalTrials.gov NCT00371839 ↗Enrolled (actual)
78
Serious AEs
8.7%
Results posted
Nov 2014
Primary outcomePrimary: Ability to Understand Speech in Noise Background — 84; 78; 47 Percent correct of 100 presented words
Summary
The purpose of this study is to determine the effects of age-related cognitive changes on hearing aid benefit based on hearing aid compression time constants.
The hypothesis is that people with poor working memory skills will benefit from slow time constants in hearing aid compression while those with good working memory skills will be able to benefit from more sophisticated compression algorithms with rapid time constants.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Ability to Understand Speech in Noise Background |
84; 78; 47 | — |
Eligibility Criteria
Inclusion Criteria
- Participants will be 50 to 75 years old.
- Hearing loss will be limited to 40 dB HL from 250 Hz through 1000 Hz, and to 60 dB HL through 4000 Hz.
- Hearing loss must be greater than 25 dB at two or more frequencies from 250 to 4000 Hz.
Exclusion Criteria
- None of the participants will be current or past hearing aid users; all will be free of ear disease.
- Participants with conductive hearing losses, defined as air-bone gap greater than 15 dB, will be excluded.
- The audiometric battery with acoustic reflex thresholds and decay measurements will be used to exclude anyone with evidence of a central disorder or a pathology other than a sensorineural loss. Those potential participants will be referred to a medical professional.
Data sourced from ClinicalTrials.gov (NCT00371839). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.