A model of transparent motion and non-transparent motion aftereffects

Grunewald, A

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A model of transparent motion and non-transparent motion aftereffects

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Grunewald, A
Max Planck Institute for Biological Cybernetics, Max Planck Society;
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Grunewald, A. (1996). A model of transparent motion and non-transparent motion aftereffects. In D. Touretzky, M. Mozer, & M. Hasselmo (Eds.), Advances in Neural Information Processing Systems 8 (pp. 837-843). Cambridge, MA, USA: MIT Press.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-EB62-2

Abstract

A model of human motion perception is presented. The model contains two stages of direction selective units. The first stage contains broadly tuned units, while the second stage contains units that are narrowly tuned. The model accounts for the motion aftereffect through adapting units at the first stage and inhibitory interactions at the second stage. The model explains how two populations of dots moving in slightly different directions are perceived as a single population moving in the direction of the vector sum, and how two populations moving in strongly different directions are perceived as transparent motion. The model also explains why the motion aftereffect in both cases appears as non-transparent motion.