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Self-organized hierarchical structure in a plastic network of chaotic units

✍ Scribed by J Ito; K Kaneko

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
468 KB
Volume
13
Category
Article
ISSN
0893-6080

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✦ Synopsis

Formation 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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