
Jennifer Deal
Associate Professor of Epidemiology at Johns Hopkins Bloomberg School of Public Health and Interim Director of the Cochlear Center for Hearing and Public Health, researching hearing loss, cognitive decline, and brain aging.
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Aug 1, 2026
196 | Hearing Loss and Cognitive Decline – A Conversation With Dr. Jennifer Deal
10:21
10:38
10:52
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10:11John BelloneHOST
So can you talk through the basics? You know, we don't have to get too much into the weeds here, but just kind of the basics of how different hearing tests work and pros and cons from a measurement perspective.

Jennifer DealGUEST
So the audiometry really is the most common measure that we use, and it certainly is used very often in the clinic, but even from an epidemiologic and research, uh, standpoint because that does really give us what we would call a more objective measure of what's happening in the inner ear.

Jennifer DealGUEST
I do acknowledge, of course, that you have to still acknowledge that you hear the tones, and so you do have to either raise your hand or somehow other indicate when you've heard a tone.

Jennifer DealGUEST
But pure tones you can get in children who are even nonverbal, especially with gamification.
7 MINS LATER
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17:39John BelloneHOST
But, uh, for now, when you consider methodological strengths and limitations and synthesize the literature as a whole, what general statements do you think we can make about the relationship between hearing loss and then later development of cognitive decline and/or dementia?