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. | LitMetric

AI Article Synopsis

Article Abstract

Random search is a behavioral strategy used by organisms from bacteria to humans to locate food that is randomly distributed and undetectable at a distance. We investigated this behavior in the nematode , an organism with a small, well-described nervous system. Here we formulate a mathematical model of random search abstracted from the connectome and fit to a large-scale kinematic analysis of behavior at submicron resolution. The model predicts behavioral effects of neuronal ablations and genetic perturbations, as well as unexpected aspects of wild type behavior. The predictive success of the model indicates that random search in can be understood in terms of a neuronal flip-flop circuit involving reciprocal inhibition between two populations of stochastic neurons. Our findings establish a unified theoretical framework for understanding locomotion and a testable neuronal model of random search that can be applied to other organisms.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4798983PMC
http://dx.doi.org/10.7554/eLife.12572DOI Listing

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