Smallest channel in early human vision
- 1 July 1980
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 70 (7), 868-870
- https://doi.org/10.1364/josa.70.000868
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.Keywords
This publication has 18 references indexed in Scilit:
- Theory of edge detectionProceedings of the Royal Society of London. B. Biological Sciences, 1980
- Further evidence for four mechanisms mediating vision at threshold: Sensitivities to complex gratings and aperiodic stimuliJournal of the Optical Society of America, 1979
- Bandpass channels, zero-crossings, and early visual information processingJournal of the Optical Society of America, 1979
- A computational theory of human stereo visionProceedings of the Royal Society of London. B. Biological Sciences, 1979
- A four mechanism model for threshold spatial visionVision Research, 1979
- Threshold visibility of frequency gradient patternsVision Research, 1977
- Diffraction Theory and Visual HyperacuityOptometry and Vision Science, 1976
- Spatial resolution in visual system: a theoretical and experimental study on single units in the cat's lateral geniculate body.Journal of Neurophysiology, 1973
- Application of fourier analysis to the visibility of gratingsThe Journal of Physiology, 1968
- Die SehschärfePflügers Archiv - European Journal of Physiology, 1943