2022 Audiology George Kopp Memorial Lecture
This event is in the past.
M. Charles Liberman, Ph.D., the Harold F. Schuknecht Professor of Otolaryngology at Harvard Medical School, will present “Cochlear Synaptopathy in Noise-Induced and Age-Related Hearing Loss.”
In many mammals, including humans, overexposure to loud sound causes rapid loss of the synaptic connections between cochlear nerve fibers and their hair cell targets, even if the hair cells recover. Normal aging also destroys cochlear neurons before there is appreciable hair cell damage. The phenomenon of cochlear synaptopathy has also been called “hidden hearing loss”, because hearing sensitivity, i.e. the audiogram, is predominately determined by hair cell health, whereas loss of neurons primarily affects the intelligibility of complex sounds like speech, especially in noisy environment. This primary degeneration of cochlear neurons may also be important in the genesis of tinnitus and hyperacusis.
Dr. Liberman has been on the faculty at Harvard since 1979. He is the vice chair of Basic Research at Harvard Medical School and the Director of the Eaton-Peabody Laboratories at Massachusetts Eye and Ear Infirmary. He has published more than 180 papers on a variety of topics in auditory neuroscience. Dr. Liberman's research interests include the coding of acoustic stimuli as neural responses in the auditory periphery, efferent feedback control of the auditory periphery, the mechanisms underlying noise-induced and age-related hearing loss, the signaling pathways mediating nerve survival in the inner ear, and the application of cell- and drug-based therapies.
Food will be provided at 12:30 p.m. in the Community Room on the third floor of the Undergraduate Library Bernath Auditorium.
Or Join via Zoom: https://wayne-edu.zoom.us/j/2016617822