Self-organized criticality in the brain

D Plenz, TL Ribeiro, SR Miller, PA Kells, A Vakili… - Frontiers in …, 2021 - frontiersin.org
Self-organized criticality (SOC) refers to the ability of complex systems to evolve toward a
second-order phase transition at which interactions between system components lead to …

Excitation–inhibition balance, neural criticality, and activities in neuronal circuits

J Liang, Z Yang, C Zhou - The Neuroscientist, 2024 - journals.sagepub.com
Neural activities in local circuits exhibit complex and multilevel dynamic features. Individual
neurons spike irregularly, which is believed to originate from receiving balanced amounts of …

Quasiuniversal scaling in mouse-brain neuronal activity stems from edge-of-instability critical dynamics

GB Morales, S Di Santo… - Proceedings of the …, 2023 - National Acad Sciences
The brain is in a state of perpetual reverberant neural activity, even in the absence of
specific tasks or stimuli. Shedding light on the origin and functional significance of such a …

[HTML][HTML] Signature of consciousness in brain-wide synchronization patterns of monkey and human fMRI signals

G Hahn, G Zamora-López, L Uhrig, E Tagliazucchi… - NeuroImage, 2021 - Elsevier
During the sleep-wake cycle, the brain undergoes profound dynamical changes, which
manifest subjectively as transitions between conscious experience and unconsciousness …

Hybrid-type synchronization transitions: Where incipient oscillations, scale-free avalanches, and bistability live together

V Buendía, P Villegas, R Burioni, MA Muñoz - Physical Review Research, 2021 - APS
The human cortex is never at rest but in a state of sparse and noisy neural activity that can
be detected at broadly diverse resolution scales. It has been conjectured that such a state is …

Scale-free avalanches in arrays of FitzHugh–Nagumo oscillators

M Contreras, ES Medeiros, A Zakharova… - … Journal of Nonlinear …, 2023 - pubs.aip.org
The activity in the brain cortex remarkably shows a simultaneous presence of robust
collective oscillations and neuronal avalanches, where intermittent bursts of pseudo …

Frequency-Dependent Covariance Reveals Critical Spatiotemporal Patterns of Synchronized Activity in the Human Brain

R Calvo, C Martorell, GB Morales, S Di Santo… - Physical Review Letters, 2024 - APS
Recent analyses, leveraging advanced theoretical techniques and high-quality data from
thousands of simultaneously recorded neurons across regions in the brain, compellingly …

Criticality enhances the multilevel reliability of stimulus responses in cortical neural networks

J Liang, C Zhou - PLoS computational biology, 2022 - journals.plos.org
Cortical neural networks exhibit high internal variability in spontaneous dynamic activities
and they can robustly and reliably respond to external stimuli with multilevel features–from …

Gamma Oscillations Facilitate Effective Learning in Excitatory‐Inhibitory Balanced Neural Circuits

KT Li, J Liang, C Zhou - Neural Plasticity, 2021 - Wiley Online Library
Gamma oscillation in neural circuits is believed to associate with effective learning in the
brain, while the underlying mechanism is unclear. This paper aims to study how spike …

Unveiling the intrinsic dynamics of biological and artificial neural networks: from criticality to optimal representations

GB Morales, S Di Santo, MA Muñoz - arxiv preprint arxiv:2307.10669, 2023 - arxiv.org
Deciphering the underpinnings of the dynamical processes leading to information
transmission, processing, and storing in the brain is a crucial challenge in neuroscience. An …