PMID: 8585932Nov 1, 1995Paper

Effect of temporal frequency and contrast on peripheral grating resolution

Current Eye Research
R S AndersonC O'Brien

Abstract

We measured resolution at 10 degrees in the inferior temporal retina using horizontal and vertical gratings of different contrasts which modulated in time at temporal frequencies from 0 to 40 Hz. Since peripheral grating resolution is directly related to the sampling density of retinal ganglion cells this allowed us to observe changes in responding ganglion cell density as the stimulus properties changed to selectively stimulate magnocellular pathway cells (M cells) instead of parvocellular pathway cells (P cells). At all contrasts there was no decline in resolution performance up to 10 Hz, after which resolution deteriorated significantly, this effect being greater at lower contrasts. The predicted psychophysical resolution limit for M cells calculated from the anatomical data of Dacey indicates that resolution for high temporal frequency (30 Hz) or low contrast (5%) stimuli is too good to be mediated by M cells alone and there is still significant P cell stimulation by these stimuli.

References

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Citations

Oct 12, 1999·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·R S Anderson, L N Thibos
Apr 1, 1997·Vision Research·R S Anderson, C O'Brien
Mar 13, 2012·Vision Research·Shaban DemirelLarry N Thibos
Mar 8, 2017·Vision Research·Abinaya Priya VenkataramanLinda Lundström
Aug 23, 2001·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·L JustinoM J Kergoat
Aug 30, 2002·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Fergal A Ennis, Chris A Johnson
Nov 4, 2009·Neuroreport·Felipe Aedo-Jury, Delphine Pins

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