Hidden Hearing Loss: Noise Exposure, Aging, and Diagnosis

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

SAC members and associates receive FREE exclusive access to all of SAC's online professional development opportunities.

Not an SAC member or associate? Click here for more information on the benefits of joining SAC!

This webcast is eligible for 1 SAC CEE (Category A).

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

Intended audience: Audiologists, Audiology Assistants, Speech and Hearing Assistants, Students

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

Level: Intermediate (Assumes that the participant has little to 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
Access to SAC webinars, Lunch & Learns and webcasts are an exclusive benefit of SAC membership. Links to online SAC Professional Development opportunities are not to be shared with non-members/non-associates. SAC reserves the right to terminate participation of a non-member/associate in any SAC online Professional Development event.
Non-members or non-associates must join SAC in order to have access to SAC online professional development. Information on joining SAC can be found on our website at https://www.sac-oac.ca/membership-certification/become-member-0.