The ConCrit Framework: How Critical Brain Dynamics may Shape Conscious Experience

by Prof. Oren Shriki

Ben-Gurion University of the Negev

at Quantum optics seminar

Wed, 22 Jan 2025, 16:00
Zoom Only

Abstract

Zoom link: https://us02web.zoom.us/j/81615345472?pwd=73SfDkjqs39RWbaTbTY6cWI4a29mfH.1

Abstract:
The critical brain hypothesis posits that the human brain operates near the threshold between two distinct dynamical states—a critical transition point believed to optimize information representation, processing efficiency, and adaptability. In this talk, we will explore the computational and empirical foundations of this hypothesis, focusing on its potential relevance to conscious experience. We will discuss computational models of recurrent neural networks that optimize information representation and naturally evolve to operate near criticality. These models demonstrate how critical systems exhibit essential properties, including enhanced entropy, heightened sensitivity to internal and external inputs, and the emergence of rich, structured patterns of activity.
We will also present empirical evidence supporting critical brain dynamics, such as critical slowing and neuronal avalanches, highlighting their significance for understanding the neural basis of consciousness. Building on these insights, we will introduce the ConCrit framework, which proposes that systems capable of conscious experience are most likely to exhibit it near criticality and lose it as they deviate from this state.
Finally, we will discuss the potential role of quantum mechanics in the brain, particularly in the context of consciousness, and suggest that critical brain dynamics may amplify quantum effects, offering a novel perspective at the intersection of physics, neuroscience, and consciousness studies.

Created on 16-01-2025 by Folman, Ron (folman)
Updaded on 16-01-2025 by Folman, Ron (folman)