Fig. 3

Probability density functions of size biases (a, c, e) and contrast biases (b, d, f) for the size single-dimension task (a), contrast single-dimension task (b), and orthogonal task (c–f). Plots depict length (in degrees of visual angle) of first saccades toward the preferred (negative x-axis) and non-preferred (positive x-axis) features relative to central fixation (0 degrees). Vertical arrows point to approximate locations of the inner edges of bar stimuli. Each colored line represents data of a single participant