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dc.contributor.authorTorney, Colin
dc.contributor.authorNeufeld, Zoltan
dc.contributor.authorCouzin, Iain D.
dc.date.accessioned2014-10-09T14:42:06Z
dc.date.issued2009-12-29
dc.description.abstractLocating the source of an advected chemical signal is a common challenge facing many living organisms. When the advecting medium is characterized by either high Reynolds number or high Peclet number, the task becomes highly nontrivial due to the generation of heterogeneous, dynamically changing filamental concentrations that do not decrease monotonically with distance to the source. Defining search strategies that are effective in these environments has important implications for the understanding of animal behavior and for the design of biologically inspired technology. Here we present a strategy that is able to solve this task without the higher intelligence required to assess spatial gradient direction, measure the diffusive properties of the flow field, or perform complex calculations. Instead, our method is based on the collective behavior of autonomous individuals following simple social interaction rules which are modified according to the local conditions they are experiencing. Through these context-dependent interactions, the group is able to locate the source of a chemical signal and in doing so displays an awareness of the environment not present at the individual level. This behavior illustrates an alternative pathway to the evolution of higher cognitive capacity via the emergent, group-level intelligence that can result from local interactions.en_GB
dc.description.sponsorshipScience Foundation Irelanden_GB
dc.description.sponsorshipSearle Scholar Awarden_GB
dc.description.sponsorshipNational Science Foundationen_GB
dc.description.sponsorshipOffice of Naval Researchen_GB
dc.identifier.citationVol. 106 (52), pp. 22055 - 22060en_GB
dc.identifier.doi10.1073/pnas.0907929106
dc.identifier.grantnumber08-SPP-201en_GB
dc.identifier.grantnumberPHY-0848755en_GB
dc.identifier.grantnumberN00014-09-1-1074en_GB
dc.identifier.urihttp://hdl.handle.net/10871/15686
dc.language.isoenen_GB
dc.publisherNational Academy of Sciencesen_GB
dc.relation.urlhttp://www.ncbi.nlm.nih.gov/pubmed/20018696en_GB
dc.subjectAlgorithmsen_GB
dc.subjectAnimalsen_GB
dc.subjectAppetitive Behavioren_GB
dc.subjectCooperative Behavioren_GB
dc.subjectEcosystemen_GB
dc.subjectFourier Analysisen_GB
dc.subjectMemoryen_GB
dc.subjectModels, Biologicalen_GB
dc.subjectSignal Transductionen_GB
dc.subjectSocial Behavioren_GB
dc.subjectStochastic Processesen_GB
dc.titleContext-dependent interaction leads to emergent search behavior in social aggregatesen_GB
dc.typeArticleen_GB
dc.date.available2014-10-09T14:42:06Z
exeter.place-of-publicationUnited States
dc.descriptionCopyright © 2009 National Academy of Sciencesen_GB
dc.identifier.eissn1091-6490
dc.identifier.journalProceedings of the National Academy of Sciencesen_GB


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