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Cortical Plasticity Following Adult-Onset Hearing Loss, Ashley L. Schormans
Cortical Plasticity Following Adult-Onset Hearing Loss, Ashley L. Schormans
Electronic Thesis and Dissertation Repository
The consequences of hearing loss are not confined to how the central auditory system processes sound; crossmodal plasticity also occurs, which is characterized by an increased responsiveness of neurons in auditory areas to visual and/or tactile stimuli. In the primary auditory cortex, partial hearing loss causes a decrease in the number of auditory-responsive neurons, as well as an increase in multisensory neurons. However, it was relatively unknown how adult-onset hearing loss affected cortical areas that are already capable of integrating multisensory information, such as the lateral extrastriate visual cortex (V2L). Using a combination of in vivo electrophysiology, neuropharmacology and behavioural …