Journal
JOURNAL OF THEORETICAL BIOLOGY
Volume 261, Issue 4, Pages 501-510Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jtbi.2009.08.013
Keywords
Collective behavior; Information; Decision-making; Retina; Vision; Trafalgar effect
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Funding
- U.S. Army's Network Science research initiative through the U. S. Army Engineer Research & Development Center (ERDC) Environmental Quality & Installations (EQ/I) Basic Research Program
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We explore mechanisms associated with collective animal motion by drawing on the neurobiological bases of sensory information processing and decision-making. The model uses simplified retinal processes to translate neighbor movement patterns into information through spatial signal integration and threshold responses. The structure provides a mechanism by which individuals can vary their sets of influential neighbors, a measure of an individual's sensory load. Sensory loads are correlated with group order and density, and we discuss their adaptive values in an ecological context. The model also provides a mechanism by which group members can identify, and rapidly respond to, novel visual stimuli. (C) 2009 Elsevier Ltd. All rights reserved.
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