JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN
Online ISSN : 1349-838X
Print ISSN : 0019-2341
ISSN-L : 0019-2341
Color Matching Repeatability as a Function of Time Interval in Successive Presentation
Hiroyuki ShinodaMitsuo Ikeda
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1994 Volume 78 Issue 10 Pages 560-567

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Abstract

A color matching task was done by one subject repeatedly to study color discriminability as a function of inter stimulus interval (ISI) in successive stimuli presentation. Reference and matching stimuli were presented alternately with a certain ISI (0-1000 msec.) The subject adjusted the color of the matching stimulus to match the color of the reference stimulus while switching their presentation at will. The distribution of matching points was assessed by an ellipsoid in xyY color space. The size of the ellipsoid was constant in spite of the ISI increase, but was nevertheless larger than that obtained in simultaneous presentation. The fact shows that the time interval between successive fixations was not a primary factor of low discriminability for spatially separated stimuli.

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