The Gaps-in-Noise Test: Gap Detection Thresholds in Normal-Hearing Young Adults

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00593788

Enrollment

100

Registered

2008-01-15

Start date

2003-03-31

Completion date

2004-06-30

Last updated

2008-01-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Auditory Perception, Psychoacoustics

Keywords

GIN test, gap detection, temporal resolution, auditory perception, psychoacoustics

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.

Interventions

None listed

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 31 Years

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.

Design outcomes

Primary

Measure	Time frame
gap detection test	half hour

Countries

Brazil

Outcome results