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

University of Sao Paulo100 enrolled

Overview

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 Type

OBSERVATIONAL

Enrollment

100

Conditions

Auditory Perception Psychoacoustics

Eligibility

Sex: ALLMin age: 18 YearsMax age: 31 YearsHealthy volunteers:

Medical Language ↔ Plain English

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.

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

Overview

Conditions

Eligibility

Locations (1)

Outcomes

Primary Outcomes