{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T03:40:15Z","timestamp":1787283615866,"version":"build-2736575974"},"reference-count":59,"publisher":"Society for Industrial & Applied Mathematics (SIAM)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["SIAM J. Appl. Dyn. Syst."],"published-print":{"date-parts":[[2012,1]]},"abstract":"<jats:p>The collective behavior of cortical neurons is strongly affected by the presence of noise at the level of individual cells. In order to study these phenomena in large-scale assemblies of neurons, we consider networks of firing-rate neurons with linear intrinsic dynamics and nonlinear coupling, belonging to a few types of cell populations and receiving noisy currents. As the number of neurons tends to infinity, asymptotic equations (mean field equations) are rigorously derived based on a probabilistic approach. These equations are implicit on the probability distribution of the solutions, which generally makes their direct analysis difficult. However, in our case, the solutions are Gaussian, and their moments satisfy a closed system of nonlinear ordinary differential equations (ODEs), which are much easier to study than the original stochastic network equations, and the statistics of the empirical process uniformly converge towards the solutions of these ODEs. Based on this description, we analytically and numerically study the influence of noise on the collective behaviors, and compare these asymptotic regimes to simulations of the network. We observe that the mean field equations provide an accurate description of the solutions of the network equations for network sizes as small as a few hundred neurons. In particular, we observe that the level of noise in the system qualitatively modifies its collective behavior, producing, for instance, synchronized oscillations of the whole network, desynchronization of oscillating regimes, and stabilization or destabilization of stationary solutions. These results shed new light on the role of noise in shaping collective dynamics of neurons, and give us clues for understanding similar phenomena observed in biological networks.<\/jats:p>","DOI":"10.1137\/110832392","type":"journal-article","created":{"date-parts":[[2012,1,14]],"date-time":"2012-01-14T03:38:45Z","timestamp":1326512325000},"page":"49-81","source":"Crossref","is-referenced-by-count":79,"title":["Noise-Induced Behaviors in Neural Mean Field Dynamics"],"prefix":"10.1137","volume":"11","author":[{"given":"Jonathan","family":"Touboul","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Geoffroy","family":"Hermann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olivier","family":"Faugeras","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"351","published-online":{"date-parts":[[2012,1,13]]},"reference":[{"key":"R1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevA.48.1483"},{"key":"R2","doi-asserted-by":"publisher","DOI":"10.1038\/nrn2258"},{"key":"R3","doi-asserted-by":"publisher","DOI":"10.1109\/TSMC.1972.4309193"},{"key":"R4","doi-asserted-by":"publisher","DOI":"10.1007\/BF00337259"},{"key":"R5","doi-asserted-by":"publisher","DOI":"10.1093\/cercor\/7.3.237"},{"key":"R6","doi-asserted-by":"crossref","unstructured":"L. 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