August 1984
Volume 25, Issue 8
Articles  |   August 1984
Rate-dependent inhibition of pattern-evoked retinal responses in the pigeon.
Investigative Ophthalmology & Visual Science August 1984, Vol.25, 984-987. doi:
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      W W Dawson; Rate-dependent inhibition of pattern-evoked retinal responses in the pigeon.. Invest. Ophthalmol. Vis. Sci. 1984;25(8):984-987.

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      © ARVO (1962-2015); The Authors (2016-present)

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Robust signals of corneal derivation were recorded from the pigeon (a foveate model) in response to alternating gratings. When a rotating windmill-like display was superimposed upon the visual field, there was rate-dependent inhibition of the response to the gratings. Inhibition diminished linearly with grating contrasts (11-40%) and nonlinearly above 50%. The responses to diffuse-light stimuli showed no rate dependence but a predictable, steady reduction at all windmill rates. Rate-dependent inhibition has been reported only in the inner-retinal cells of other animals where intracellular recordings have been made.


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