2017
Feedback between motion and sensation provides nonlinear boost in run-and-tumble navigation
Long J, Zucker SW, Emonet T. Feedback between motion and sensation provides nonlinear boost in run-and-tumble navigation. PLOS Computational Biology 2017, 13: e1005429. PMID: 28264023, PMCID: PMC5358899, DOI: 10.1371/journal.pcbi.1005429.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsComputer SimulationFeedback, PhysiologicalGaitHumansLocomotionModels, BiologicalMotion PerceptionNonlinear DynamicsPhysical ExertionRotationSpatial NavigationConceptsNon-normal dynamicsRelevant parameter spaceFundamental nonlinearityParameter spaceInternal statesRandom reorientationDrift speedClassical drawbacksDynamics implicitStraight motionLarge transientsMotionAnalytical approachLarge fluctuationsDynamicsProbabilityNonlinearitySignal levelGradientFeedbackSpaceSpeedFluctuationsDirection
2014
Limits of Feedback Control in Bacterial Chemotaxis
Dufour YS, Fu X, Hernandez-Nunez L, Emonet T. Limits of Feedback Control in Bacterial Chemotaxis. PLOS Computational Biology 2014, 10: e1003694. PMID: 24967937, PMCID: PMC4072517, DOI: 10.1371/journal.pcbi.1003694.Peer-Reviewed Original ResearchConceptsFeedback controlIntegral feedback controlOperational regimesOptimal operational regimeComplex statisticsDrift velocityRobust performanceFuture inputsAdaptation rateProper information transferChemotactic driftAnalytical modelInput signalOptimal regimeActuatorsSteep gradientsProper couplingWide rangeChemotactic performanceRegimeBifurcation