Title:
"Non-equilibrium neurodynamics: A new approach to neuronal information transmission using non-equilibrium thermodynamics
Speaker:
Dr. P.K. Roy , National Brain Research Centre
Subject:
neural coding
Area:
Medicine
Type of school:
university
School name:
ohio state university
Country:
United States
Course language:
English
Course media:
Text
Course duration:
Contributor:
pbp
Comments:
Author: Dr. P.K. Roy , National Brain Research Centre
Title: "Non-equilibrium neurodynamics: A new approach to neuronal information transmission using non-equilibrium thermodynamics
Presentation Materials: PDF PPT
We elucidate a new approach for analyzing neuronal systems using non-classical (non-equilibrium) information theory. Specifically, we consider the irreversible processes behind neural information transmission, using the tools of non-equilibrium, nonclassical thermodynamics. This contrasts to other current studies in neuroscience, which use the Shannon model of information theory, based on the classical equilibrium thermodynamic model of Boltzman. Based on this new approach, we are delineating an experimental and theoretical infrastructure aimed at elucidating the control, communication and computation processes in neural
systems. Using Nyquist theorem and generalized temperature concept (Nyqiust temperature), we compute a non-equilibrial entropy production and neurodynamic temperature equivalent during neural information processing. A trans-information/temperature plot implies a zero neurodynamic temperature (at 0 N, degrees nyquist), as an informational counterpart of third law of thermodynamics (at 0 K). Multi-unit electrophysiological data derived from the cricket cercal sensory system is used to test, refine and generalize this new framework. A model is being developed of this simple sensory-motor system within this new framework. This novel approach may be of general utility to neuroscientists interested in determining the neural basis of computation.
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