Casado J M
Area de Física Teórica, Universidad de Sevilla, Apartado Correos 1065, 41080, Sevilla, Spain.
Phys Rev Lett. 2003 Nov 14;91(20):208102. doi: 10.1103/PhysRevLett.91.208102. Epub 2003 Nov 10.
The focus of this Letter is on the activity of a network of neurons pairwise coupled by inhibitory connections. Each neuron is represented by a two-dimensional map capable, when isolated, of a rich variety of complex dynamical regimes. It is shown that the network exhibits a stimulus-dependent sequential activation and inactivation of subgroups of neurons. This complex behavior is rather similar to some spatiotemporal features observed in the first stages of the olfaction process in some insects and suggests the possibility of large scale simulation of these processes by using reasonable computational capabilities.
本信函的重点在于由抑制性连接成对耦合的神经元网络的活动。每个神经元由一个二维映射表示,当该神经元孤立时,它能够呈现出丰富多样的复杂动态模式。研究表明,该网络表现出依赖于刺激的神经元亚群的顺序激活和失活。这种复杂行为与在某些昆虫嗅觉过程的初始阶段观察到的一些时空特征相当相似,并表明利用合理的计算能力对这些过程进行大规模模拟的可能性。