Santa Fe Institute Collaboration Platform

COMPLEX TIME: Adaptation, Aging, & Arrow of Time

Get Involved!
Contact: Caitlin Lorraine McShea, Program Manager, cmcshea@santafe.edu

Symmetry Breaking in Space-Time Hierarchies Shapes Brain Dynamics and Behavior

From Complex Time
Category
General Reference
author-supplied keywords
keywords
authors
Ajay S. Pillai
Viktor K. Jirsa
title
Symmetry Breaking in Space-Time Hierarchies Shapes Brain Dynamics and Behavior
year
2017
source
Neuron


Abstract

In order to maintain brain function, neural activity needs to be tightly coordinated within the brain network. How this coordination is achieved and related to behavior is largely unknown. It has been previously argued that the study of the link between brain and behavior is impossible without a guiding vision. Here we propose behavioral-level concepts and mechanisms embodied as structured flows on manifold (SFM) that provide a formal description of behavior as a low-dimensional process emerging from a network's dynamics dependent on the symmetry and invariance properties of the network connectivity. Specifically, we demonstrate that the symmetry breaking of network connectivity constitutes a timescale hierarchy resulting in the emergence of an attractive functional subspace. We show that behavior emerges when appropriate conditions imposed upon the couplings are satisfied, justifying the conductance-based nature of synaptic couplings. Our concepts propose design principles for networks predicting how behavior and task rules are represented in real neural circuits and open new avenues for the analyses of neural data.

Counts

Citation count From Scopus. Refreshed every 5 days.
Page views
13

Identifiers

Related files

Add a file