Neural image processing by dendritic networks.

ABSTRACT: Convolution is one of the most common operations in image processing. Based on experimental findings on motion-sensitive visual interneurons of the fly, we show by realistic compartmental modeling that a dendritic network can implement this operation. In a first step, dendritic electrical coupling between two cells spatially blurs the original motion input. The blurred motion image is then passed onto a third cell via inhibitory dendritic synapses resulting in a sharpening of the signal. This enhancement of motion contrast may be the central element of figure-ground discrimination based on relative motion in the fly.

SUBMITTER: Cuntz H 

PROVIDER: S-EPMC196930 | biostudies-literature | 2003 Sep

REPOSITORIES: biostudies-literature