NCT00724347|CompletedResults
PC-Based Rehabilitation of Auditory Function
CINT
PC-based Rehabilitation of Auditory Function
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CINT
PC-based Rehabilitation of Auditory Function
Sponsor study identifier
interventional
18
0 countries
N/A
Study Start
July 2008
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
March 2013
Actual (reported)Study Completion
March 2013
Actual (reported)Many older subjects experience difficulty in understanding speech in noisy environments. Part of this problem is related to changes that occur in the ear with age and compromise the hearing of high-pitched sounds. Another part of the problem with speech understanding relates to changes with age in the neural circuits of the brain that process different speech sounds. Evidence suggests that these changes in neural circuits are particularly large if hearing loss is present. Thus, while hearing aids may help compensate for hearing deficits by amplifying speech sounds, additional treatment is necessary to restore optimal neural connections in the brain so that speech sounds can be accurately distinguished from each other. We are developing PC-based training programs in an attempt to restore optimal neural connections. The current randomized trial will evaluate whether two months of training to improve the ability to discriminate different consonant sounds in noise will also improve the understanding of continuous speech and enhance auditory memory and other high-level auditory functions.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
March 2013
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
July 2008
Date type not reportedThis date has not been verified as actual or estimated.
July 24, 2008
Actual (reported)July 29, 2008
Actual (reported)March 2013
Actual (reported)March 2013
Actual (reported)January 13, 2015
Actual (reported).Speech Discrimination Ability
Mean consonant identification threshold improvement measure in z-scores (re normal hearing subjects) on consonant and sentence discrimination tests. Additional computerized tests measured auditory short-term verbal memory, and auditory pattern discrimination. The results were compared with baseline performance in the listener group as well as performance in other older hearing impaired subjects who used hearing aids, but who did not undergo training. In the next month, we will published two manuscripts in PLoS ONE describing (1) the benefits of hearing aids on speech comprehension in the absence of perceptual training; (2) the additional benefits of perceptual training. More metholdological details can be found in those manuscripts.
Subjects will receive two months of PC training and be tested before and after 2-months of training with speech tests in the laboratory..
Hearing impaired listeners with hearing aids underwent two months of consonant identification training in their homes.
Subjects received psychophysically adaptive, consonant identification training in consonant discrimination on PCs in their homes.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Woods DL, Doss Z, Herron TJ, Yund EW. Age-related changes in consonant and sentence processing. J Rehabil Res Dev. 2012;49(8):1277-91. doi: 10.1682/jrrd.2011.08.0150.
Woods DL, Yund EW, Herron TJ, Ua Cruadhlaoich MA. Consonant identification in consonant-vowel-consonant syllables in speech-spectrum noise. J Acoust Soc Am. 2010 Mar;127(3):1609-23. doi: 10.1121/1.3293005.
Woods DL, Yund EW, Herron TJ. Measuring consonant identification in nonsense syllables, words, and sentences. J Rehabil Res Dev. 2010;47(3):243-60. doi: 10.1682/jrrd.2009.04.0040.
Five publications describing the new tests that we developed have appeared.
David L. Woods, PhD
VA Northern California HCS
18 participants (actual enrollment reported by the registry).
First Submitted
July 24, 2008
First Posted
July 29, 2008
Study Start
July 2008
Date type not reportedThis date has not been verified as actual or estimated.
Study of Low Level Laser Therapy and Word Recognition in Hearing Impaired Individuals
Contact the study team to confirm eligibility.
Yund EW, Woods DL. Content and procedural learning in repeated sentence tests of speech perception. Ear Hear. 2010 Dec;31(6):769-78. doi: 10.1097/AUD.0b013e3181e68e4a.
Primary Completion
March 2013
Actual (reported)Study Completion
March 2013
Actual (reported)Last Updated
January 27, 2015
Results First Posted
January 13, 2015
Record last verified: 2015-01
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Source: ClinicalTrials.gov.
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