SAC Webinar: Hidden Hearing Loss: Noise Exposure, Aging, and Diagnosis

Chris Plack, MA (Cantab), PhD (Cantab)
March 6 2019
SAC Event: 
CEE Eligible: 
PD Hub Category: 

Presented by Chris Plack, MA (Cantab), PhD (Cantab)

Click here to register.

Registration deadline: March 5, 2019 at 3:00 p.m. (ET)

March 6, 2019 – 12 p.m. - 1 p.m. (ET)

Time Zone Time
Pacific Standard Time 9:00 a.m. – 10:00 a.m.
Mountain Standard Time 10:00 a.m. – 11:00 a.m.
Central Standard Time 11:00 a.m. – 12:00 p.m.
Eastern Standard Time 12:00 p.m. – 1:00 p.m.
Atlantic Standard Time 1:00 p.m. – 2:00 p.m.
Newfoundland Standard Time 1:30 p.m. – 2:30 p.m.


SAC Members and Associates


*All registered participants must be SAC members/associates


Cancellation Policy: Because we have limited spaces available for participants, if you are unable to attend the webinar you registered for, please contact Bev Cooper at as soon as possible.


Intended audience: Audiologists, speech and hearing assistants, audiology assistants, students

This session pertains to: Adult (18-64), Seniors (64+)

Level: Intermediate (Assumes that the participant has general familiarity with the literature and professional practice within the areas covered.)


Results from rodent models suggest that noise exposure or aging can cause a dramatic loss of connections between inner hair cells and auditory nerve fibers. This disorder has been called cochlear synaptopathy or “hidden hearing loss” because it is not thought to be detectable using pure tone audiometry. The evidence for cochlear synaptopathy in humans due to noise exposure is mixed. However, there is emerging histological and electrophysiological evidence that aging is associated with substantial synaptopathy in humans.

In this webinar, I will provide an overview of our current understanding of cochlear synaptopathy in humans. I will also discuss which measures of synaptopathy might provide the basis for a diagnostic test.

Learning Objectives

  • Understand the rodent model of cochlear synaptopathy
  • Understand the results of the recent studies of synaptopathy in humans, including the effects of noise exposure and aging
  • Understand the potential and challenges for the clinical diagnosis of synaptopathy

This webinar is eligible for SAC CEEs (Category A).

Presenter Biography

Chris Plack, MA (Cantab), PhD (Cantab)

Chris Plack was educated at the University of Cambridge, where he obtained a BA in 1987 and a PhD in 1990. He is currently the Ellis Llwyd Jones Professor of Audiology at the University of Manchester and a professor of auditory neuroscience at Lancaster University. Chris has published over 100 journal articles, 13 book chapters and an introductory textbook on hearing. In 2003, he was elected a Fellow of the Acoustical Society of America.

Accessing the Webinar

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