How critical is brain criticality?

J O'Byrne, K Jerbi - Trends in Neurosciences, 2022 - cell.com
Criticality is the singular state of complex systems poised at the brink of a phase transition
between order and randomness. Such systems display remarkable information-processing …

Replay, the default mode network and the cascaded memory systems model

K Kaefer, F Stella, BL McNaughton… - Nature Reviews …, 2022 - nature.com
The spontaneous replay of patterns of activity related to past experiences and memories is a
striking feature of brain activity, as is the coherent activation of sets of brain areas …

A neurophysiological basis for aperiodic EEG and the background spectral trend

N Brake, F Duc, A Rokos, F Arseneau, S Shahiri… - Nature …, 2024 - nature.com
Electroencephalograms (EEGs) display a mixture of rhythmic and broadband fluctuations,
the latter manifesting as an apparent 1/f spectral trend. While network oscillations are known …

Colloquium: Criticality and dynamical scaling in living systems

MA Munoz - Reviews of Modern Physics, 2018 - APS
A celebrated and controversial hypothesis suggests that some biological systems—parts,
aspects, or groups of them—may extract important functional benefits from operating at the …

The entropic brain-revisited

RL Carhart-Harris - Neuropharmacology, 2018 - Elsevier
The entropic brain hypothesis proposes that within upper and lower limits, after which
consciousness may be lost, the entropy of spontaneous brain activity indexes the …

Criticality in the brain: A synthesis of neurobiology, models and cognition

L Cocchi, LL Gollo, A Zalesky, M Breakspear - Progress in neurobiology, 2017 - Elsevier
Cognitive function requires the coordination of neural activity across many scales, from
neurons and circuits to large-scale networks. As such, it is unlikely that an explanatory …

Directed and acyclic synaptic connectivity in the human layer 2-3 cortical microcircuit

Y Peng, A Bjelde, PV Aceituno, FX Mittermaier… - Science, 2024 - science.org
The computational capabilities of neuronal networks are fundamentally constrained by their
specific connectivity. Previous studies of cortical connectivity have mostly been carried out in …

[HTML][HTML] The spectral exponent of the resting EEG indexes the presence of consciousness during unresponsiveness induced by propofol, xenon, and ketamine

MA Colombo, M Napolitani, M Boly, O Gosseries… - NeuroImage, 2019 - Elsevier
Despite the absence of responsiveness during anesthesia, conscious experience may
persist. However, reliable, easily acquirable and interpretable neurophysiological markers of …

Psychedelics as medicines: an emerging new paradigm

DE Nichols, MW Johnson… - Clinical Pharmacology & …, 2017 - Wiley Online Library
Scientific interest in serotonergic psychedelics (eg, psilocybin and LSD; 5‐HT2A receptor
agonists) has dramatically increased within the last decade. Clinical studies administering …

Cortical circuit dynamics are homeostatically tuned to criticality in vivo

Z Ma, GG Turrigiano, R Wessel, KB Hengen - Neuron, 2019 - cell.com
Homeostatic mechanisms stabilize neuronal activity in vivo, but whether this process gives
rise to balanced network dynamics is unknown. Here, we continuously monitored the …