title: Pinning down randomness.
abstract: While some behavioral responses to a stimulus are invariant in animals, most are more likely to be variable or stochastic. In this issue, Gordus et al. illuminate a set of combinatorial neuronal activities that control the variability of a chemotactic behavior in response to an odor, providing a tractable system for understanding how stochastic circuit dynamics affect behavior.
authors: Section of Neurobiology, Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA. Electronic address: wkristan@ucsd.edu.
authors: William B
authors: WB
authors: Kristan
mesh_terms: D000818:Animals; D017173:Caenorhabditis elegans / Q000502:physiology*; D009833:Olfactory Pathways