Increased activity in frontal motor cortex compensates impaired speech perception in older adults.
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ABSTRACT:
SUBMITTER: Du Y
PROVIDER: S-EPMC4974649 | biostudies-literature | 2016 Aug
REPOSITORIES: biostudies-literature
Publications
Increased activity in frontal motor cortex compensates impaired speech perception in older adults.
Du Yi Y Buchsbaum Bradley R BR Grady Cheryl L CL Alain Claude C
Nature communications 20160802
Understanding speech in noisy environments is challenging, especially for seniors. Although evidence suggests that older adults increasingly recruit prefrontal cortices to offset reduced periphery and central auditory processing, the brain mechanisms underlying such compensation remain elusive. Here we show that relative to young adults, older adults show higher activation of frontal speech motor areas as measured by functional MRI during a syllable identification task at varying signal-to-noise ...[more]
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