Skip to main content
. Author manuscript; available in PMC: 2014 Aug 18.
Published in final edited form as: Vision Res. 2011 Jul 31;51(20):2169–2175. doi: 10.1016/j.visres.2011.07.018

Fig. 1. The figure plots contrast detection thresholds (vertical axis; Michelson units) in four different conditions (labels on horizontal axis.).

Fig. 1

Error bars show 95% confidence limits, based on 80 exact replications of the QUEST procedure in the experiment with the maximum-likelihood parameters of the psychometric function. Data for subjects MJM, MT, ABC, DEF and AT are shown with diamonds, stars, squares, circles and crosses respectively. Subject AT was not tested in the Diff (oppositely moving adaptor and test) condition.