Self-organized hierarchical structure in a plastic network of chaotic units
2000; Elsevier BV; Volume: 13; Issue: 3 Linguagem: Inglês
10.1016/s0893-6080(99)00107-0
ISSN1879-2782
Autores Tópico(s)Fractal and DNA sequence analysis
ResumoFormation of a layered structure is studied in a globally coupled map of chaotic units with a plastic coupling strength that changes depending on the states of units globally and an external input. In the parameter region characterized by weakly chaotic and desynchronized dynamics, units spontaneously form a hierarchical structure due to the influence of the input. This hierarchical structure is not fixed in time, and is successively reorganized. It is found that the distribution of lifetimes of the structure obeys a power law. The possible relevance of the present result to information processing in the brain is briefly discussed.
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