Jorge Cortés
Professor
Cymer Corporation Endowed Chair
Goal-driven selective attention in thalamocortical networks: a control-theoretic perspective
M. McCreesh, E. Nozari, J. Cortés
Annual Reviews in Control, submitted
Abstract
Goal-driven selective attention (GDSA) is a phenomenon that allows the
brain to identify, separate, and process relevant and irrelevant
information for use in various brain functions such as sensory
processing, perception, and memory. Many of the functions relying on
GDSA involve networks connecting the thalamus with the cerebral cortex
in different topological configurations. This work investigates the
thalamocortical network principles underlying GDSA using a
control-theoretic approach. Modeling brain dynamics with a
linear-threshold firing rate model, our approach allows for a detailed
treatment of the hierarchical nature of the brain using tools from
singular perturbation theory and switched systems. We illustrate, in
particular, how the two components of GDSA, namely, selective
recruitment and inhibition, can be achieved in multiple network
topologies and discuss the similarities and differences thereof.
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Mechanical and Aerospace Engineering,
University of California, San Diego
9500 Gilman Dr,
La Jolla, California, 92093-0411
Ph: 1-858-822-7930
Fax: 1-858-822-3107
cortes at ucsd.edu
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jorgilliyo