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Aging and hearing loss leads to increased neural responses to sounds in the auditory cortex compared to younger people. Enhanced neural activity to sound may be a physiological mechanism underlying the difficulty that older adults have with ignoring irrelevant sound information.
Aging, Hearing and auditory perception, MEG
Journal of Neuroscience 21 February 2018, 38 (8) 1989-1999. Available: https://doi.org/10.1523/JNEUROSCI.1489-17.2018
Human Cognition and Sensorimotor Core
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BrainsCAN, "Aging is associated with an over-sensitivity of brain responses to sounds" (2018). Research Summaries. 1.