Brain Dynamics across levels of Organization

Werner, M.D. Gerhard (2006) Brain Dynamics across levels of Organization. [Preprint]

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After presenting evidence that the electrical activity recorded from the brain surface can reflect metastable state transitions of neuronal configurations at the mesoscopic level, I will suggest that their patterns may correspond to the distinctive spatio-temporal activity in the Dynamic Core (DC) and the Global Neuronal Workspace (GNW), respectively, in the models of the Edelman group on the one hand, and of Dehaene-Changeux, on the other. In both cases, the recursively reentrant activity flow in intra-cortical and cortical-subcortical neuron loops plays an essential and distinct role. Reasons will be given for viewing the temporal characteristics of this activity flow as signature of Self-Organized Criticality (SOC), notably in reference to the dynamics of neuronal avalanches. This point of view enables the use of statistical Physics approaches for exploring phase transitions, scaling and universality properties of DC and GNW, with relevance to the macroscopic electrical activity in EEG and EMG.

Item Type:Preprint
Additional Information:Some aspects of this paper were presebted at a meeting of a Special Interest Group of INNS, November 4, 2006, Arlington TX
Keywords:Metastability, Self-Organized Criticality, phase Transitions, Dynamic Core Hypothesis, Global Workspace, Non-Linear Dynamics, Operational Architectonics, Microstates
Subjects:Computer Science > Dynamical Systems
ID Code:5275
Deposited By: Werner, Gerhard
Deposited On:08 Dec 2006
Last Modified:11 Mar 2011 08:56

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