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@INPROCEEDINGS{Layer:873622,
author = {Layer, Moritz and Dahmen, David and Deutz, Lukas and
Dabrowska, Paulina and Voges, Nicole and Grün, Sonja and
Diesmann, Markus and Helias, Moritz and Papen, Michael von},
title = {{F}ocus {S}ession: {C}ollective {D}ynamics in {N}eural
{N}etworks; {L}ong-{R}ange {C}ollective {D}ynamics in the
{B}alanced {S}tate},
reportid = {FZJ-2020-00865},
year = {2019},
abstract = {Experimental findings suggest, that cortical networks
operate in a balanced state, in which strong recurrent
inhibition suppresses single cell input correlations. The
balanced state, however, only restricts the average
correlations in the network, the distribution of
correlations between individual inputs is not constrained.
We here investigate this distribution and establish a
functional relation between the distance to criticality and
the spatial dependence of the statistics of correlations.
Therefore, we develop a mean-field theory that goes beyond
self-averaging quantities by taking advantage of the
symmetry of the disorder-averaged effective connectivity
matrix. We demonstrate that spatially organized, balanced
networks can show rich pairwise correlation structures,
extending far beyond the range of direct connections.
Strikingly, the range of these correlations depends on the
distance of the network dynamics to a critical point. This
relation between the operational regime of the network and
the range of correlations is a potential dynamical mechanism
that controls the spatial range on which neurons
cooperatively perform computations. In the future we will
compare our results with data from multi channel recordings
to infer new constraints on realistic network models.},
month = {Mar},
date = {2019-03-31},
organization = {DPG Spring Meetings 2019, Regensburg
(Germany), 31 Mar 2019 - 5 Apr 2019},
subtyp = {Other},
cin = {INM-6 / INM-10 / IAS-6},
cid = {I:(DE-Juel1)INM-6-20090406 / I:(DE-Juel1)INM-10-20170113 /
I:(DE-Juel1)IAS-6-20130828},
pnm = {574 - Theory, modelling and simulation (POF3-574) / GRK
2416 - GRK 2416: MultiSenses-MultiScales: Neue Ansätze zur
Aufklärung neuronaler multisensorischer Integration
(368482240) / MSNN - Theory of multi-scale neuronal networks
(HGF-SMHB-2014-2018) / Smartstart - SMARTSTART Training
Program in Computational Neuroscience (90251)},
pid = {G:(DE-HGF)POF3-574 / G:(GEPRIS)368482240 /
G:(DE-Juel1)HGF-SMHB-2014-2018 / G:(EU-Grant)90251},
typ = {PUB:(DE-HGF)6},
url = {https://juser.fz-juelich.de/record/873622},
}