Abstract
In this paper, we report a novel optokinetic nystagmus (OKN), which was evoked by stationary gratings presented intermittently. OKN eye movements were accurately measured by the electromagnetic scleral search-coil technique. For the luminance stimuli, alternating OKN was elicited when the interstimulus interval (ISI) ranged from 33 to 83 ms duration and the ISI luminance approximated to the mean luminance of the stimulus grating; for chromatic (red/green) stimuli, the OKN could be evoked in non-isoluminant condition and vanished in the isoluminant condition. It is a plausible explanation that the present OKN, intermittent display-of-gratings-induced OKN (IDG-OKN), might be related to the temporal impulse response of the luminance channel in vision.
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