Evidence map›Paper›PMID 22262904›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

Maximal variability of phase synchrony in cortical networks with neuronal avalanches.

Hongdian Yang, Woodrow L Shew, Rajarshi Roy, Dietmar Plenz

Abstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 110 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
110citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

110 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  20. The fractal brain: scale-invariance in structure and dynamics.Cerebral cortex (New York, N.Y. : 1991) · 2023
    Review

50 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Hongdian YangSection on Critical Brain Dynamics, Laboratory of Systems Neuroscience, National Institutes of Mental Health, Bethesda, Maryland 20892, USA.
Woodrow L Shew
Rajarshi Roy
Dietmar Plenz

Funding

Neuronal Avalanches in the NeocortexZIAMH002797 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI PLENZ, DIETMAR · 2009 to 2025
$32.3M
Neuronal avalanches in the neocortexZ01MH002797 · NIMH · NATIONAL INSTITUTE OF MENTAL HEALTH · PI PLENZ, DIETMAR · 2002 to 2008
$3.2M
Intramural NIH HHS Z01 MH002797Intramural NIH HHS Z99 MH999999Intramural NIH HHS ZIA MH002797
6 · The paper itself

Abstract

Ongoing interactions among cortical neurons often manifest as network-level synchrony. Understanding the spatiotemporal dynamics of such spontaneous synchrony is important because it may (1) influence network response to input, (2) shape activity-dependent microcircuit structure, and (3) reveal fundamental network properties, such as an imbalance of excitation (E) and inhibition (I). Here we delineate the spatiotemporal character of spontaneous synchrony in rat cortex slice cultures and a computational model over a range of different E-I conditions including disfacilitated (antagonized AMPA, NMDA receptors), unperturbed, and disinhibited (antagonized GABA(A) receptors). Local field potential was recorded with multielectrode arrays during spontaneous burst activity. Synchrony among neuronal groups was quantified based on phase-locking among recording sites. As network excitability was increased from low to high, we discovered three phenomena at an intermediate excitability level: (1) onset of synchrony, (2) maximized variability of synchrony, and (3) neuronal avalanches. Our computational model predicted that these three features occur when the network operates near a unique balanced E-I condition called "criticality." These results were invariant to changes in the measurement spatial extent, spatial resolution, and frequency bands. Our findings indicate that moderate average synchrony, which is required to avoid pathology, occurs over a limited range of E-I conditions and emerges together with maximally variable synchrony. If variable synchrony is detrimental to cortical function, this is a cost paid for moderate average synchrony. However, if variable synchrony is beneficial, then by operating near criticality the cortex may doubly benefit from moderate mean and maximized variability of synchrony.

Indexed as

Models, NeurologicalAction PotentialsAnalysis of VarianceAnimalsBrain MappingComputer SimulationCortical SynchronizationEntropyExcitatory Amino Acid AntagonistsFemaleGABA AntagonistsMaleMesencephalonNerve NetNeuronsNonlinear DynamicsExcitatory Amino Acid AntagonistsGABA AntagonistsPicrotoxin

Identifiers

PMID22262904
PMCPMC3319677

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.