Local motion adaptation enhances the representation of spatial structure at EMD arrays.

ABSTRACT: Neuronal representation and extraction of spatial information are essential for behavioral control. For flying insects, a plausible way to gain spatial information is to exploit distance-dependent optic flow that is generated during translational self-motion. Optic flow is computed by arrays of local motion detectors retinotopically arranged in the second neuropile layer of the insect visual system. These motion detectors have adaptive response characteristics, i.e. their responses to motion with a constant or only slowly changing velocity decrease, while their sensitivity to rapid velocity changes is maintained or even increases. We analyzed by a modeling approach how motion adaptation affects signal representation at the output of arrays of motion detectors during simulated flight in art

SUBMITTER: Li J 

PROVIDER: S-EPMC5760083 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature