The simplest maximum entropy model for collective behavior in a neural network
Tkacik, Gasper
Marre, Olivier
Mora, Thierry
Amodei, Dario
Berry, Michael
Bialek, William
Recent work emphasizes that the maximum entropy principle provides a bridge between statistical mechanics models for collective behavior in neural networks and experiments on networks of real neurons. Most of this work has focused on capturing the measured correlations among pairs of neurons. Here we suggest an alternative, constructing models that are consistent with the distribution of global network activity, i.e. the probability that K out of N cells in the network generate action potentials in the same small time bin. The inverse problem that we need to solve in constructing the model is analytically tractable, and provides a natural 'thermodynamics' for the network in the limit of large N. We analyze the responses of neurons in a small patch of the retina to naturalistic stimuli, and find that the implied thermodynamics is very close to an unusual critical point, in which the entropy (in proper units) is exactly equal to the energy. © 2013 IOP Publishing Ltd and SISSA Medialab srl.
IOP Publishing Ltd.
2013
info:eu-repo/semantics/article
doc-type:article
text
http://purl.org/coar/resource_type/c_6501
https://research-explorer.ista.ac.at/record/2850
Tkačik G, Marre O, Mora T, Amodei D, Berry M, Bialek W. The simplest maximum entropy model for collective behavior in a neural network. <i>Journal of Statistical Mechanics Theory and Experiment</i>. 2013;2013(3). doi:<a href="https://doi.org/10.1088/1742-5468/2013/03/P03011">10.1088/1742-5468/2013/03/P03011</a>
eng
info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-5468/2013/03/P03011
info:eu-repo/semantics/altIdentifier/arxiv/1207.6319
info:eu-repo/semantics/openAccess