The effects of intermittent illumination on a visual inspection task

The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology
A KennedyW S Murray

Abstract

Two experiments are described in which eye movements were monitored as subjects performed a simple target-spotting task under conditions of intermittent illumination produced by varying the display-screen frame rate on a computer VDU. In Experiment 1, subjects executed a saccade from a fixation point to a target which appeared randomly at a fixed eccentricity of 14 character positions to the left or right. Saccade latency did not differ reliably as a function of screen refresh rate, but average saccade extent at 70 Hz and 110 Hz was reliably shorter than at 90 Hz and 100 Hz. Experiment 2 examined the same task using a range of target eccentricities (7, 14, and 28 character positions to the left and right) and across a wider range of screen refresh rates. The results confirmed the curvilinear relationship obtained in Experiment 1, with average saccade extent reliably shorter at refresh rates of 50 Hz and 125 Hz than at 75 Hz and 100 Hz. While the effect was greater for remote targets, analyses of the proportional target error failed to show a reliable interaction between target eccentricity and display refresh rate. In contrast to Experiment 1, there was a pronounced effect of refresh rate on saccade latency (corrected for time ...Continue Reading

References

Jan 1, 1991·Vision Research·S L MacknikB Bridgeman
Feb 1, 1991·The Quarterly Journal of Experimental Psychology. A, Human Experimental Psychology·A Kennedy, W S Murray
May 1, 1990·Journal of Experimental Psychology. Learning, Memory, and Cognition·J M Henderson, F Ferreira
Jun 1, 1990·Perception & Psychophysics·F VituM Mittau
Sep 1, 1989·Perception & Psychophysics·G W McConkieA M Jacobs
Jan 1, 1988·Journal of Neural Transmission·A H Livermore, J R Stevens
Jan 1, 1986·Vision Research·Z Kapoula, D A Robinson
Jan 1, 1987·Perception & Psychophysics·W Hershberger
Jan 1, 1985·Vision Research·Z Kapoula
Jan 1, 1984·Vision Research·U T Eysel, U Burandt
Nov 10, 1994·Nature·M C Boschman, J A Roufs
Sep 16, 1993·Nature·A Kennedy, W S Murray
Feb 15, 1985·Applied Optics·H D Crane, C M Steele

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Citations

Jul 31, 2013·PloS One·Magali Seassau, Maria-Pia Bucci
May 31, 2014·PloS One·Richard IngerKevin J Gaston

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