Filling-In and Suppression of Visual Perception from Context: A Bayesian Account of Perceptual Biases by Contextual Influences
Figure 3
Results from Experiment 1, Where the Colinear Context Resembles the Two Left Ones in Figure 2A
The data points are the mean over six observers, and the error bars indicate the standard errors of the means (SEMs). On average and relative to the no-context condition, the weaker colinear contexts Cc = 0.01 and Cc = 0.05 raised the yes rates by CFI = 38% ± 8% and 15% ± 8%, respectively, whereas the stronger context Cc = 0.4 lowered it by −CFI = 17% ± 8%. The colored curves are Bayesian fits to data of the corresponding color, no fit is done for data without context. The root mean square normalized fitting error RMSNFE = 0.66 in the unit of SEM. The fitted parameters (and their 95% confidential intervals) are k = 1.9 (0.6, 3.2), σn = 0.0025 (0.0020, 0.0029), and P(yes) = 0.972 (0.967, 0.978).