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

NCT00593788 | Completed

• 2 other identifiers: 113 / 02113/02 de 03/13/2002
• Study Type: observational
• Target: 100
• Locations: 1 country
• Sites: 1

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.

Conditions

Auditory Perception; Psychoacoustics

Keywords

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

Outcome Measures

Primary Outcomes (1)

• gap detection test

  half hour

Study Arms (1)

1

Normal-hearing adults between 18 and 31 years of age.

Eligibility Criteria

• Age: 18 Years - 31 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

Normal-hearing adults between 18 and 31 years of age were evaluated, including 50 males (mean age 24.72 years) and 50 females (mean age 23.77 years). The youngest male subject was 18 years old, and the youngest female subject was 18.16 years old. In contrast, the oldest male subject was 31.5 years old, and the oldest female subject was 31.83 years old. All of the participants in the study were students or employees of the University of Guarulhos.

You may qualify if:

• 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;
• % or higher correct responses for each ear in the dichotic digit test.

You may not qualify if:

• Hearing loss;
• Auditory processing disorder;
• Histories of audiologic, otologic, head trauma, and neurologic involvement.

Sponsors & Collaborators

• University of Sao Paulo: lead

Study Sites (1)

University of Sao Paulo

São Paulo, São Paulo, Brazil

Location

Study Officials

• alessandra G. Samelli, Doctor

  Guarulhos University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: January 3, 2008
• First Posted: January 15, 2008
• Study Start: March 1, 2003
• Primary Completion: June 1, 2004
• Study Completion: June 1, 2004
• Last Updated: January 15, 2008

Record last verified: 2008-01

Locations

BR (1)