Hearing loss is associated with gray matter differences in older adults at risk for and with Alzheimer’s disease

Using data from the COMPASS-ND study we investigated associations between hearing loss and hippocampal volume as well as cortical thickness in older adults with subjective cognitive decline (SCD), mild cognitive impairment (MCI), and Alzheimer’s dementia (AD). SCD participants with greater pure-tone...

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Bibliographic Details
Main Authors: N. Giroud, M.K. Pichora-Fuller, P. Mick, W. Wittich, F. Al-Yawer, S. Rehan, J.B. Orange, N.A. Phillips
Format: Article
Language:English
Published: Elsevier 2021-01-01
Series:Aging Brain
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2589958921000141
Description
Summary:Using data from the COMPASS-ND study we investigated associations between hearing loss and hippocampal volume as well as cortical thickness in older adults with subjective cognitive decline (SCD), mild cognitive impairment (MCI), and Alzheimer’s dementia (AD). SCD participants with greater pure-tone hearing loss exhibited lower hippocampal volume, but more cortical thickness in the left superior temporal gyrus and right pars opercularis. Greater speech-in-noise reception thresholds were associated with lower cortical thickness bilaterally across much of the cortex in AD. The AD group also showed a trend towards worse speech-in-noise thresholds compared to the SCD group.
ISSN:2589-9589