Minimum-risk path finding by an adaptive amoebal network

Toshiyuki Nakagaki, Makoto Iima, Tetsuo Ueda, Yasumasa Nishiura, Tetsu Saigusa, Atsushi Tero, Ryo Kobayashi, Kenneth Showalter

Research output: Contribution to journalArticle

135 Citations (Scopus)

Abstract

When two food sources are presented to the slime mold Physarum in the dark, a thick tube for absorbing nutrients is formed that connects the food sources through the shortest route. When the light-avoiding organism is partially illuminated, however, the tube connecting the food sources follows a different route. Defining risk as the experimentally measurable rate of light-avoiding movement, the minimum-risk path is exhibited by the organism, determined by integrating along the path. A model for an adaptive-tube network is presented that is in good agreement with the experimental observations.

Original languageEnglish
Article number068104
JournalPhysical Review Letters
Volume99
Issue number6
DOIs
Publication statusPublished - 2007 Aug 10
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Nakagaki, T., Iima, M., Ueda, T., Nishiura, Y., Saigusa, T., Tero, A., Kobayashi, R., & Showalter, K. (2007). Minimum-risk path finding by an adaptive amoebal network. Physical Review Letters, 99(6), [068104]. https://doi.org/10.1103/PhysRevLett.99.068104