The Gaps-in-Noise Test: Gap Detection Thresholds in Normal-Hearing Young Adults
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- University of Sao Paulo
- Enrollment
- 100
- Locations
- 1
- Primary Endpoint
- gap detection test
Study Overview
Brief Summary
The aim of this study was to establish parameters for the Gaps-in-Noise test in normal-hearing young adults. One hundred subjects (50 males and 50 females) received an audiological evaluation to rule out hearing loss and auditory processing disorder. The Gaps-in-Noise test was then conducted on all subjects. The mean gap detection threshold was 4.19 msec. A psychometric function by gap duration was constructed, revealing that the percentage of correct responses was less than or equal to 5% for a gap duration of 2 msec, 10-30% for a gap duration of 3 msec, 60-70% for a gap duration of 4 msec, and over 96% for gap durations of 5 msec or longer. The results suggest that the data obtained can be applied as reference values for future testing. In the subjects evaluated, the Gaps-in-Noise test proved to be consistent with low variability.
Study Design
- Study Type
- Observational
- Observational Model
- Case Only
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to 31 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Subject inclusion criteria were:
- •all of the subjects have to have auditory thresholds lower than 20 dB HL at all of the frequencies evaluated (octave frequencies between 0.25 to 8 kHz), bilaterally;
- •type A tympanometric curves with presented ipsilateral and contralateral acoustic reflexes;
- •95% or higher correct responses for each ear in the dichotic digit test.
- •Subject inclusion criteria also included negative histories for audiologic, otologic, head trauma, and neurologic involvement.
Exclusion Criteria
- •Hearing loss;
- •Auditory processing disorder;
- •Histories of audiologic, otologic, head trauma, and neurologic involvement.
Outcomes
Primary Outcomes
gap detection test
Time Frame: half hour
Secondary Outcomes
No secondary outcomes reported