Self-organization toward criticality by synaptic plasticity
Self-organized criticality has been proposed to be a universal mechanism for the emergence
of scale-free dynamics in many complex systems, and possibly in the brain. While such …
of scale-free dynamics in many complex systems, and possibly in the brain. While such …
Feedback mechanisms for self-organization to the edge of a phase transition
Scale-free outbursts of activity are commonly observed in physical, geological, and
biological systems. The idea of self-organized criticality (SOC), introduced back in 1987 by …
biological systems. The idea of self-organized criticality (SOC), introduced back in 1987 by …
Homeostatic plasticity and external input shape neural network dynamics
In vitro and in vivo spiking activity clearly differ. Whereas networks in vitro develop strong
bursts separated by periods of very little spiking activity, in vivo cortical networks show …
bursts separated by periods of very little spiking activity, in vivo cortical networks show …
Subsampled directed-percolation models explain scaling relations experimentally observed in the brain
TTA Carvalho, AJ Fontenele… - Frontiers in Neural …, 2021 - frontiersin.org
Recent experimental results on spike avalanches measured in the urethane-anesthetized
rat cortex have revealed scaling relations that indicate a phase transition at a specific level …
rat cortex have revealed scaling relations that indicate a phase transition at a specific level …
Criticality, connectivity, and neural disorder: a multifaceted approach to neural computation
K Heiney, O Huse Ramstad, V Fiskum… - Frontiers in …, 2021 - frontiersin.org
It has been hypothesized that the brain optimizes its capacity for computation by self-
organizing to a critical point. The dynamical state of criticality is achieved by striking a …
organizing to a critical point. The dynamical state of criticality is achieved by striking a …
Synaptic balance due to homeostatically self-organized quasicritical dynamics
Recent experiments suggested that a homeostatic regulation of synaptic balance leads the
visual system to recover and maintain a regime of power-law avalanches. Here we study an …
visual system to recover and maintain a regime of power-law avalanches. Here we study an …
Spatial-Temporal Analysis of Neural Desynchronization in Sleeplike States Reveals Critical Dynamics
D Curic, S Singh, M Nazari, MH Mohajerani… - Physical Review Letters, 2024 - APS
Sleep is characterized by nonrapid eye movement sleep, originating from widespread
neuronal synchrony, and rapid eye movement sleep, with neuronal desynchronization akin …
neuronal synchrony, and rapid eye movement sleep, with neuronal desynchronization akin …
Mechanisms of self-organized quasicriticality in neuronal network models
O Kinouchi, R Pazzini, M Copelli - Frontiers in Physics, 2020 - frontiersin.org
The critical brain hypothesis states that there are information processing advantages for
neuronal networks working close to the critical region of a phase transition. If this is true, we …
neuronal networks working close to the critical region of a phase transition. If this is true, we …
Brain criticality beyond avalanches: open problems and how to approach them
M Girardi-Schappo - Journal of Physics: Complexity, 2021 - iopscience.iop.org
A homeostatic mechanism that keeps the brain highly susceptible to stimuli and optimizes
many of its functions—although this is a compelling theoretical argument in favor of the brain …
many of its functions—although this is a compelling theoretical argument in favor of the brain …
Stochastic oscillations and dragon king avalanches in self-organized quasi-critical systems
In the last decade, several models with network adaptive mechanisms (link deletion-
creation, dynamic synapses, dynamic gains) have been proposed as examples of self …
creation, dynamic synapses, dynamic gains) have been proposed as examples of self …