University of California, Irvine, CA 92697, USA.
BMC Biol. 2011 Jun 29;9:46. doi: 10.1186/1741-7007-9-46.
Brains increase the survival value of organisms by being robust and fault tolerant. That is, brain circuits continue to operate as the organism needs, even when the circuit properties are significantly perturbed. Kispersky and colleagues, in a recent paper in Neural Systems & Circuits, have found that Granger Causality analysis, an important method used to infer circuit connections from the behavior of neurons within the circuit, is defeated by the mechanisms that give rise to this robustness and fault tolerance.
大脑通过鲁棒性和容错性来提高生物体的生存价值。也就是说，即使电路特性受到显著干扰，大脑回路也能继续按照生物体的需要运行。Kispersky 及其同事在最近发表于《神经系统与电路》（Neural Systems & Circuits）的一篇论文中发现，格兰杰因果分析（Granger Causality analysis）是一种从回路内神经元的行为推断回路连接的重要方法，但这种方法会被导致鲁棒性和容错性的机制所破坏。
