期刊
EPL
卷 89, 期 1, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1209/0295-5075/89/18008
关键词
-
资金
- Israel Science Foundation [1320/09]
- Minerva Foundation (Munich, Germany)
Cooperative effects in neural networks appear because a neuron. res only if a minimal number m>1 of its inputs are excited. The multiple inputs requirement leads to a percolation model termed quorum percolation. The connectivity undergoes a phase transition as m grows, from a network-spanning cluster at low m to a set of disconnected clusters above a critical m. Both numerical simulations and the model reproduce the experimental results well. This allows a robust quanti. cation of biologically relevant quantities such as the average connectivity (k) over bar and the distribution of connections p(k) from different neural densities. Copyright (C) EPLA, 2010
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