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Dynamics of Decision Making in Animal Group Motion

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Abstract

We analyze a continuous-time model of a multi-agent system motivated by simulation studies on dynamics of decision making in animal groups in motion. Each individual moves at constant speed in the plane and adjusts its heading in response to relative headings of others in the population. The population includes two subgroups that are “informed” such that individuals in each subgroup have a preferred direction of motion. The model exhibits fast and slow time scales allowing for a reduction in the dimension of the problem. The stable solutions for the reduced model correspond to compromise by individuals with conflicting preferences. We study the global phase space for the proposed reduced model by computing equilibria and exploring stability and bifurcations.

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Correspondence to Naomi E. Leonard.

Additional information

Communicated by J.J. Collins.

B. Nabet’s and N.E. Leonard’s work is supported in part by AFOSR grant FA9550-07-1-0-0528 and ONR grants N00014-02-1-0826 and N00014-04-1-0534.

I.D. Couzin’s work was supported by the Royal Society, Balliol College and EPSRC grants GR/S04765/01 and GR/T11234/01, a Searle Scholar Award and DARPA grant HR001-05-1-0057.

S.A. Levin’s work was supported in part by DARPA grant HR0011-05-1-0057 and NSF grant EF-0434319.

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Nabet, B., Leonard, N.E., Couzin, I.D. et al. Dynamics of Decision Making in Animal Group Motion. J Nonlinear Sci 19, 399–435 (2009). https://doi.org/10.1007/s00332-008-9038-6

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  • DOI: https://doi.org/10.1007/s00332-008-9038-6

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