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Nike Walter

3 papers in the library · publishing 2020-2022

Papers

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Self-organized criticality as a framework for consciousness: A review study

Frontiers in Psychology July 15, 2022 Nike Walter, Thilo Hinterberger

ObjectiveNo current model of consciousness is univocally accepted on either theoretical or empirical grounds, and the need for a solid unifying framework is evident. Special attention has been given to the premise that self-organized criticality (SOC) is a fundamental property of neural system. SOC provides a competitive model to describe the physical mechanisms underlying spontaneous brain...

Determining states of consciousness in the electroencephalogram based on spectral, complexity, and criticality features

Neuroscience of Consciousness April 1, 2022 Nike Walter, Thilo Hinterberger

Abstract This study was based on the contemporary proposal that distinct states of consciousness are quantifiable by neural complexity and critical dynamics. To test this hypothesis, it was aimed at comparing the electrophysiological correlates of three meditation conditions using nonlinear techniques from the complexity and criticality framework as well as power spectral density. Thirty...

Self-regulated critical brain dynamics originate from high frequency-band activity in the MEG.

PLoS One 2020 Stefan Dürschmid, Christoph Reichert, Nike Walter et al.

Brain function requires the flexible coordination of billions of neurons across multiple scales. This could be achieved by scale-free, critical dynamics balanced at the edge of order and disorder. Criticality has been demonstrated in several, often reduced neurophysiological model systems. In the intact human brain criticality has yet been only verified for the resting state. A more direct link...