18-COGS11-Plasticity

18-COGS11-Plasticity - Auditory Syste Plasticity ud to y...

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Auditory System Plasticity ud to y Syste ast c ty Micah R. Bregman mbregman@cogsci.ucsd.edu
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What is experience-dependent plasticity? he ructure f the brain changes over time and The structure of the brain changes over time and depends on experience. Changes occur at different time-scales: very rapidly and rather slowly, during adulthood and across development. lasticity is observed in changing responses of single Plasticity is observed in changing responses of single neurons, changes in the structure of topographic maps, and in changes to brain structure. h h b b d h i l l d th h These changes can be observed behaviorally and through imaging and electrophysiological studies.
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he “critical” period The critical period the past it was thought that there are “critical” windows In the past, it was thought that there are critical windows for neuroplasticity, and that brain organization outside of these restricted time periods is fixed. True: there are times when plasticity may be facilitated (e.g. second language acquisition, perceptual expertise and face cognition) recognition) However: there is no point in life where plasticity is not ccurring. Plasticity is ongoing and lasts through adulthood. occurring. Plasticity is ongoing and lasts through adulthood. Current terminology: sensitive period.
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Where do changes occur? hort answer almost everywhere in the brain Short answer: almost everywhere in the brain. More specifically: cortical plasticity has been well udied especially in sensory and frontal cortex studied, especially in sensory and frontal cortex. Some recent studies (we’ll talk about one) have shown
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This note was uploaded on 03/02/2010 for the course COGSCI 11 taught by Professor Maryb. during the Spring '10 term at UCSD.

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18-COGS11-Plasticity - Auditory Syste Plasticity ud to y...

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