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arXiv 0709.1108nlin.CD
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利用相变实现混沌阵列的脉冲同步

Spike synchronization of a chaotic array as a phase transition

M. Ciszak, A. Montina, F. T. Arecchi

摘要:

研究了耦合脉冲混沌系统如何在短时间内响应于外部驱动。同步意味着相邻部位的峰电位间隔比平均峰电位间隔短得多;局部缺乏同步称为缺陷。该系统显示突然自发缺陷消失在临界耦合强度。在临界耦合以下,系统在外部输入的确定幅度处达到有序;该有序持续固定的时隙。因此,阵列表现为可激发系统,即使单个元素缺乏这样的属性。上述特征为知觉任务中特征绑定提供了一个动力学解释。

英文摘要:

We study how a coupled array of spiking chaotic systems synchronizes to an external driving in a short time. Synchronization means spike separation at adjacent sites much shorter than the average inter-spike interval; a local lack of synchronization is called a defect. The system displays sudden spontaneous defect disappearance at a critical coupling strength. Below critical coupling, the system reaches order at a definite amplitude of an external input; this order persists for a fixed time slot. Thus, the array behaves as an excitable system, even though the single element lacks such a property. The above features provide a dynamical explanation of feature binding in perceptual tasks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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