ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2021
A Model for the Origin of Motion Direction Selectivity in Visual Cortex.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 24 citations in OpenAlex.
- Machine learning discovers numerous new computational principles supporting elementary motion detection.Nature communications · 2026Article
- Article
- Cortical direction selectivity increases from the input to the output layers of visual cortex.PLoS biology · 2025Article
- A spatiotemporal energy model based on spiking neurons for human motion perception.Cognitive neurodynamics · 2024Article
- Impact of Acute Visual Experience on Development of LGN Receptive Fields in the Ferret.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023Article
- Ionic-electronic halide perovskite memdiodes enabling neuromorphic computing with a second-order complexity.Science advances · 2022Article
- A model for the development of binocular congruence in primary visual cortex.Scientific reports · 2022Article
- Origins of direction selectivity in the primate retina.Nature communications · 2022Article
- A Computational Model of Direction Selectivity in Macaque V1 Cortex Based on Dynamic Differences between On and Off Pathways.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- A theory of direction selectivity for macaque primary visual cortex.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
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Authors and funding
1 author at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Motion perception is a vital part of our sensory repertoire in that it contributes to navigation, awareness of moving objects, and communication. Motion sense in carnivores and primates originates with primary visual cortical neurons selective for motion direction. More than 60 years after the discovery of these neurons, there is still no consensus on the mechanism underlying direction selectivity. This paper describes a model of the cat's visual system in which direction selectivity results from the well-documented orientation selectivity of inhibitory neurons: inhomogeneities in the orientation preference map for inhibitory neurons leads to spatially asymmetric inhibition, and thus to direction selectivity. Stimulation of the model with a drifting grating shows that direction selectivity results from the relative timing of excitatory and inhibitory inputs to a neuron. Using a stationary contrast-reversing grating reveals that the inhibitory input is spatially displaced in the preferred direction relative to the excitatory input, and that this asymmetry leads to the timing difference. More generally, the model yields physiologically realistic estimates of the direction selectivity index, and it reproduces the critical finding with contrast-reversing gratings that response phase advances with grating spatial phase. It is concluded that a model based on intracortical inhibition can account well for the known properties of direction selectivity in carnivores and primates.
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