Coarse Graining, Fixed Points, and Scaling in a Large Population of Neurons

作者：Leenoy Meshulam, Jeffrey L. Gauthier, Carlos D. Brody, David W. Tank, William Bialek · 发表于：Physical Review Letters · 年份：2019 · DOI：10.1103/physrevlett.123.178103 · 被引用次数：144 · 研究领域：Neural dynamics and brain function、Gene Regulatory Network Analysis、stochastic dynamics and bifurcation

We develop a phenomenological coarse-graining procedure for activity in a large network of neurons, and apply this to recordings from a population of 1000+ cells in the hippocampus. Distributions of coarse-grained variables seem to approach a fixed non-Gaussian form, and we see evidence of scaling in both static and dynamic quantities. These results suggest that the collective behavior of the network is described by a nontrivial fixed point.