Smallest channel in early human vision

Marr, D; Poggio, T; Hildreth, E

doi:10.1364/josa.70.000868

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Smallest channel in early human vision

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Poggio, T
Max Planck Institute for Biological Cybernetics, Max Planck Society;
Former Department Information Processing in Insects, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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https://www.osapublishing.org/josa/viewmedia.cfm?uri=josa-70-7-868&seq=0
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Citation

Marr, D., Poggio, T., & Hildreth, E. (1980). Smallest channel in early human vision. Journal of the Optical Society of America, 70(7), 868-870. doi:10.1364/josa.70.000868.

Cite as: https://hdl.handle.net/21.11116/0000-0006-6F40-6

Abstract

We suggest from the psychophysical data on two-point and line acuity that the smallest foveal channel in human vision must have an excitatory center with a diameter of around 1′ 20″. Taking into account the optics of the eye and the finite size of the receptors, we show that this would correspond well to the properties of a retinal ganglion cell receiving excitatory input from a single cone.