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Brain Awareness Week - Dr. Stephen Lomber - Acoustic Experience Alters How You See the World

Description


PC/155
The 2019 Brain Awareness Week (BAW) speaker for McMaster University is Dr. Stephen Lomber from the Department of Psychology and the Department of Physiology and Pharmacology at the University of Western Ontario.

Dr. Lomber will give the PNB Colloquium on Thursday, 14 March 2019, from 1430-1530 hrs.
Location: Psychology Complex, room PC-155.
Host: Paul Faure (x26393)

Title: Acoustic Experience Alters How You See the World

Abstract: Cortical plasticity is the neural mechanism by which the cerebrum adapts itself to its environment, while at the same time making it vulnerable to impoverished sensory or developmental experiences. Like the visual system, auditory development passes through a series of sensitive periods in which circuits and connections are established and then refined by experience. Current research is expanding our understanding of cerebral processing and organization in the deaf. In the congenitally deaf, higher-order areas of "deaf" auditory cortex demonstrate significant crossmodal plasticity with neurons responding to visual and somatosensory stimuli. This crucial cerebral function results in compensatory plasticity. Not only can the remaining inputs reorganize to substitute for those lost, but this additional circuitry also confers enhanced abilities to the remaining systems. In this presentation we will review our present understanding of the structure and function of “deaf” auditory cortex using psychophysical, electrophysiological, and connectional anatomy approaches and consider how this knowledge informs our expectations of the capabilities of cochlear implants in the developing brain.

Psychiatry talk, Dr. Lomber will present a Grand Rounds talk to the Department of Psychiatry and Behavioural Neurosciences on Wednesday, 13 March 2019 at 0900 hrs.

Grand Rounds: Wednesday, 13 March 2019, 0900-1000 hrs, Department of Psychiatry and Behavioural Neurosciences.
Location: West 5th Campus, St. Joseph’s Healthcare, Lower Auditorium Entrance Level B1.

Title: Auditory Cortex Plasticity Following Deafness and Cochlear Implant
Abstract: Current research is expanding our understanding of cerebral processing and organization following sensory loss. In the congenitally deaf, higher-order areas of "deaf" auditory cortex demonstrate significant crossmodal plasticity with neurons responding to visual and tactile stimuli. This crucial cerebral function results in compensatory plasticity. Not only can the remaining inputs reorganize to substitute for those lost, but this additional circuitry also confers enhanced abilities to the remaining systems. In this presentation we will review our present understanding of the structure and function of “deaf” auditory cortex, and following hearing restoration with cochlear implants, using psychophysical, electrophysiological, and connectional anatomy approaches.

Contact Department

Department of Psychology, Neuroscience & Behaviour (PNB)
Psychology Building (PC), Room 102
McMaster University
1280 Main Street West
Hamilton Ontario L8S 4K1
Canada