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SIG
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Presenter(s): Sharon G. Kujawa, PhD, CCC-A
Credit(s): PDHs: 2.0, ASHA CEUs*: 0.2
Summary: Noise exposure and aging are common causes of acquired sensorineural hearing loss, marked by damaged hair cells and evident in threshold audiograms. Recent studies have shown that well before overt hearing loss is apparent, a more insidious process frequently occurs, one that doesn’t kill hair cells, but instead permanently interrupts their communication with cochlear neurons. This cochlear synaptic loss can be dramatic, even in ears with normal threshold audiograms, where it has been called “hidden hearing loss.” This webinar will review hidden and overt effects of noise and aging on the ear and hearing, focusing on documented synaptopathic and neurodegenerative outcomes and predicted functional consequences, including speech-in noise difficulties, tinnitus, and hyperacusis.