Measurements of the Pulfrich effect over days of exposure

The Journal of Psychology
D T Landrigan


Mean depth settings and subjective reports appear to confirm previous subjective reports from users of the X-Chrom prescription lens that Pulfrich Effect depth distortions decrease with continued exposure to light intensity disparity. Depth setting variability across Days of exposure indicates a rapid increase in depth judgment errors which persists without decrement across Days. This increased variability, the apparent depth decrements, and color discrimination improvements shed light on the visual processing underlying the Pulfrich Effect and reveal a potentially dangerous illusion.


Jan 15, 1979·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·S Ullman
Jan 1, 1973·Scandinavian Journal of Psychology·S Krekling
Feb 1, 1974·Vision Research·B J RogersH Ono
May 1, 1972·The Quarterly Journal of Experimental Psychology·A W Pressey, O Sweeney
Aug 1, 1972·Vision Research·W R LevickJ S Coombs
Nov 1, 1981·The Journal of Psychology·D T Landrigan, I A Bader


May 1, 1997·Survey of Ophthalmology·C J Diaper
Mar 14, 1998·The British Journal of Ophthalmology·S M ScotcherR A Harrad
Dec 10, 2019·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Cagri IlhanPelin Yilmazbas
May 3, 2019·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·W Neil CharmanDavid A Atchison

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Color Perception
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