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Accession Number ADA570143
Title Performance on Tests of Central Auditory Processing by Individuals Exposed to High-Intensity Blasts.
Publication Date Jul 2012
Media Count 22p
Personal Author A. C. Diedesch F. J. Gallun L. R. Kubli R. L. Folmer T. C. Walden
Abstract Thirty-six blast-exposed patients and twenty-nine non-blast-exposed control subjects were tested on a battery of behavioral and electrophysiological tests that have been shown to be sensitive to central auditory processing deficits. Abnormal performance among the blast-exposed patients was assessed with reference to normative values established as the mean performance on each test by the control subjects plus or minus two standard deviations. Blast-exposed patients performed abnormally at rates significantly above that which would occur by chance on three of the behavioral tests of central auditory processing: the Gaps-In-Noise, Masking Level Difference, and Staggered Spondaic Words tests. The proportion of blast-exposed patients performing abnormally on a speech-in-noise test (Quick Speech-In- Noise) was also significantly above that expected by chance. These results suggest that, for some patients, blast exposure may lead to difficulties with hearing in complex auditory environments, even when peripheral hearing sensitivity is near normal limits.
Keywords Audiometric evaluation
Auditory acuity
Auditory dysfunction
Auditory processing disorder
Behavioral sciences
Central auditory processing
Evoked potential
Hearing loss
Traumatic brain injuries
Veterans(Military personnel)

Source Agency Non Paid ADAS
NTIS Subject Category 57A - Anatomy
57S - Physiology
Corporate Author Walter Reed National Military Medical Center, Bethesda, MD.
Document Type Journal article
Title Note Journal article.
NTIS Issue Number 1314
Contract Number N/A

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