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Text
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URL Address
<a href="http://doi.org/10.1002/jnr.24639" target="_blank" rel="noreferrer noopener">http://doi.org/10.1002/jnr.24639</a>
ISSN
1097-4547 0360-4012
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Update Year & Number
June 2020 Update II
NEOMED College
NEOMED College of Medicine
NEOMED Department
Department of Anatomy & Neurobiology
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Title
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Evidence for independent peripheral and central age-related hearing impairment.
Publisher
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Journal of neuroscience research
Date
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2020
2020-05-16
Subject
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age-related hearing impairment; central presbycusis; deficits; frequency; peripheral hearing loss; peripheral hearing loss; sensitivity; temporal processing; temporal-gap detection; thresholds
Creator
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Bao Jianxin; Yu Yan; Li Hui; Hawks John; Szatkowski Grace; Dade Bethany; Wang Hao; Liu Peng; Brutnell Thomas; Spehar Brent; Tye-Murray Nancy
Description
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Deleterious age-related changes in the central auditory nervous system have been referred to as central age-related hearing impairment (ARHI) or central presbycusis. Central ARHI is often assumed to be the consequence of peripheral ARHI. However, it is possible that certain aspects of central ARHI are independent from peripheral ARHI. A confirmation of this possibility could lead to significant improvements in current rehabilitation practices. The major difficulty in addressing this issue arises from confounding factors, such as other age-related changes in both the cochlea and central non-auditory brain structures. Because gap detection is a common measure of central auditory temporal processing, and gap detection thresholds are less influenced by changes in other brain functions such as learning and memory, we investigated the potential relationship between age-related peripheral hearing loss (i.e., audiograms) and age-related changes in gap detection. Consistent with previous studies, a significant difference was found for gap detection thresholds between young and older adults. However, among older adults, no significant associations were observed between gap detection ability and several other independent variables including the pure tone audiogram average, the Wechsler Adult Intelligence Scale-Vocabulary score, gender, and age. Statistical analyses showed little or no contributions from these independent variables to gap detection thresholds. Thus, our data indicate that age-related decline in central temporal processing is largely independent of peripheral ARHI.
Identifier
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<a href="http://doi.org/10.1002/jnr.24639" target="_blank" rel="noreferrer noopener">10.1002/jnr.24639</a>
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journalArticle
2020
age-related hearing impairment
Bao Jianxin
Brutnell Thomas
central presbycusis
Dade Bethany
deficits
Department of Anatomy & Neurobiology
frequency
Hawks John
Journal of neuroscience research
journalArticle
June 2020 Update II
Li Hui
Liu Peng
NEOMED College of Medicine
peripheral hearing loss
sensitivity
Spehar Brent
Szatkowski Grace
temporal processing
temporal-gap detection
thresholds
Tye-Murray Nancy
Wang Hao
Yu Yan