Limits of feedback control in bacterial chemotaxis.

ABSTRACT: Inputs to signaling pathways can have complex statistics that depend on the environment and on the behavioral response to previous stimuli. Such behavioral feedback is particularly important in navigation. Successful navigation relies on proper coupling between sensors, which gather information during motion, and actuators, which control behavior. Because reorientation conditions future inputs, behavioral feedback can place sensors and actuators in an operational regime different from the resting state. How then can organisms maintain proper information transfer through the pathway while navigating diverse environments? In bacterial chemotaxis, robust performance is often attributed to the zero integral feedback control of the sensor, which guarantees that activity returns to resting state

SUBMITTER: Dufour YS 

PROVIDER: S-EPMC4072517 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature