Estimating orientation in natural scenes: A spiking neural network model of the insect central complex.

ABSTRACT: The central complex of insects contains cells, organised as a ring attractor, that encode head direction. The 'bump' of activity in the ring can be updated by idiothetic cues and external sensory information. Plasticity at the synapses between these cells and the ring neurons, that are responsible for bringing sensory information into the central complex, has been proposed to form a mapping between visual cues and the heading estimate which allows for more accurate tracking of the current heading, than if only idiothetic information were used. In Drosophila, ring neurons have well characterised non-linear receptive fields. In this work we produce synthetic versions of these visual receptive fields using a combination of excitatory inputs and mutual inhibition between ring neurons. We use t

SUBMITTER: Stentiford R 

PROVIDER: S-EPMC11349202 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature