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Obtaining multiple separate food sources : behavioural intelligence in the Physarum plasmodium

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Title: Obtaining multiple separate food sources : behavioural intelligence in the Physarum plasmodium
Authors: Nakagaki, Toshiyuki Browse this author
Kobayashi, Ryo Browse this author
Nishiura, Yasumasa Browse this author →KAKEN DB
Ueda, Tetsuo Browse this author
Keywords: Physarum
small-world network
network dynamics
amoeboid behaviour
cell intelligence
Issue Date: 7-Nov-2004
Publisher: Royal Society
Journal Title: Proceedings of the Royal Society of London. B, Biological Sciences
Volume: 271
Issue: 1554
Start Page: 2305
End Page: 2310
Publisher DOI: 10.1098/rspb.2004.2856
Abstract: In order to evaluate performance in a complex survival task, we studied the morphology of the Physarum plasmodium transportation network when presented with multiple separate food sources. The plasmodium comprises a network of tubular elements through which chemical nutrient, intracellular signals and the viscous body are transported and circulated. When three separate food sources were presented, located at the vertices of a triangle, the tubular network connected them via a short pathway, which was often analogous to the mathematically shortest route known as Steiner's Minimum Tree (SMT). The other common network shape had high fault tolerance against accidental disconnection of the tubes and was known as cycle (CYC). Pattern selection appeared to be a bistable system involving SMT and CYC. When more than three food sources were presented the network pattern tended to be a patchwork of SMT and CYC. We therefore concluded that the plasmodium tube network is a well designed and intelligent system.
Type: article (author version)
URI: http://hdl.handle.net/2115/40063
Appears in Collections:電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 西浦 廉政

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