Virtual fMRI brown bag: September 18

Please join us for a talk given by Piergiorgio (PG) Salvan, a postdoctoral research assistant in Heidi Johansen-Berg's Plasticity lab at the University of Oxford, UK.

Title: Causal evidence of network communication in whole-brain dynamics through a multiplexed neural code

Abstract:
At the large-scale, the brain is organised in spontaneous dynamic networks of multiple brain areas. What, if anything, allows one area to be part of one network or another? In other words, what coding mechanisms may allow one region to be dynamically integrated into one network or another? Answering this question may provide a better understanding of the basic mechanisms shaping functional brain organisation. In this work, by combining optogenetic manipulation of mouse entorhinal cortex with concurrent whole-brain fMRI and computational modelling, we causally test frequency-division multiplexing as a potential routing mechanism to achieve selective network communication. This work establishes how a cell-level coding mechanism affects network-level functional brain organisation.

Video of talk (requires Dartmouth NetID verification)