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Neuroscience Brown Bag Series

Thursday, January 10, 2019,

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  • Location: Wilson Hall • 111 21St Ave S • Nashville, TN 37240
  • Room: 316

Jon Kaas, PhD

Department of Psychology

Vanderbilt University

"Two issues about cortex: where is V2 and is cortical plasticity cortical?"

In this first talk of the New Year, I will consider two specific aspects of neocortical organization and function that are under contention. First, what happened to the second visual area, V2 , of rats and mice? Current proposals do not include this classical visual area, and present a conflicting interpretation of the organization of visual cortex.

This impacts on the use of these rodents as models of visual processing. I will argue that they do have a V2. The second issue is that it has been common to attribute functional changes in cortical sensory areas after sensory loss to cortical plasticity. I will argue that they are often the result of subcortical changes. Thus, fMRI studies of cortical reorganization in humans should consider this possibility.