Neural image processing by dendritic networks
- 28 August 2003
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 100 (19) , 11082-11085
- https://doi.org/10.1073/pnas.1830705100
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.Keywords
This publication has 30 references indexed in Scilit:
- Dendritic processingCurrent Opinion in Neurobiology, 2001
- The intrinsic electrophysiological characteristics of fly lobula plate tangential cells: I. Passive membrane propertiesJournal of Computational Neuroscience, 1996
- Dendritic Integration in Mammalian Neurons, a Century after CajalPublished by Elsevier ,1996
- Amplification of high-frequency synaptic inputs by active dendritic membrane processesNature, 1996
- Insect optic lobe neurons identifiable with monoclonal antibodies to GABAHistochemistry and Cell Biology, 1986
- On the neuronal basis of figure-ground discrimination by relative motion in the visual system of the flyBiological Cybernetics, 1985
- Figure-ground discrimination by relative movement in the visual system of the flyBiological Cybernetics, 1983
- Visual orientation behaviour of flies after selective laser beam ablation of interneuronesNature, 1981
- The synaptic organization of visual interneurons in the lobula complex of fliesCell and tissue research, 1980
- Branching dendritic trees and motoneuron membrane resistivityExperimental Neurology, 1959