The role of auditory cortex in segregating sounds in individuals with normal hearing and age-related hearing loss

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Listening to someone speak in a noisy room is a common problem associated with age-related hearing loss. More than 50% of people over the age of sixty suffer from some degree of hearing loss, and while both hearing aids and cochlear implants can improve hearing, in a noisy environment, hearing is still generally problematic. Being able to listen to one sound in the presence of other distracting sounds, commonly referred to as "the cocktail party problem", is fundamental to our ability to recognize speech and appreciate music. The proposed research project will investigate how the brain solves this problem, and create a model system to study what changes in the brain after age-related hearing loss, that makes it more difficult to hear someone's voice in a noisy room.