From: Implicit knowledge of visual uncertainty guides decisions with asymmetric outcomes
Journal of Vision. 2008;8(3):2. doi:10.1167/8.3.2
Figure Legend:
Comparison of predicted and observed behavior. (a and b) Predicted and observed relative shifts in the centers of the
psychometric curves, for the first (a) and the second (b) sessions. If performance is quantitatively optimal (up to a
constant bias), the data points (grey circles) should lie on the dotted identity line. The ellipses show the 2 σ covariance
expected due to sampling errors, and the dashed line is a linear fit to the data points, computed by minimizing the
weighted squared error in the plane with respect to these covariances. All observers showed the predicted pattern of
shifts but were not quantitatively exact. (c and d) The mean and variance of the score that would be obtained if each
observer
behaved
optimally given theThe
directional
bias
calculated
for the
(c) and theCopyright
second (d)
sessions
(seereserved.
Date
of download:
7/28/2017
Association
forwas
Research
in Vision
and first
Ophthalmology
© 2017.
All rights
Appendix A2). Crosses plot predicted against observed score, with observers numbered as in panels a and b. The