Document Detail

Minimum-risk path finding by an adaptive amoebal network.
MedLine Citation:
PMID:  17930872     Owner:  NLM     Status:  MEDLINE    
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.
Toshiyuki Nakagaki; Makoto Iima; Tetsuo Ueda; Yasumasa Nishiura; Tetsu Saigusa; Atsushi Tero; Ryo Kobayashi; Kenneth Showalter
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2007-08-10
Journal Detail:
Title:  Physical review letters     Volume:  99     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2007 Aug 
Date Detail:
Created Date:  2007-10-12     Completed Date:  2008-01-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  068104     Citation Subset:  IM    
Research Institute for Electronic Science, Hokkaido University, Sapporo, 060-0812, Japan.
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MeSH Terms
Adaptation, Physiological / physiology*
Behavior, Animal / physiology
Feedback / physiology
Locomotion / physiology*
Models, Biological*
Physarum polycephalum / physiology*
Signal Transduction / physiology

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