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Completed

NCT Number: NCT00593788

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

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.

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Key information

Conditions

Auditory Perception Psychoacoustics

Age range

18 year–31 year

Sex eligibility

All sexes

Study type

Observational

Primary location

University of Sao Paulo

São Paulo, Brazil

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Primary outcomes

  1. gap detection test

    Time frame: half hour

Sponsors and collaborators

Lead sponsor

University of Sao Paulo

Other

Registry information

Important dates

Study start
2003
Primary completion
2004
Study completion
2004
First posted
Jan 15, 2008
Registry last updated
Jan 15, 2008

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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