Figure 9.

Linking changes in perceptual gain and noise with saccade bias. A–C each plot the change in these three perceptual measures (right minus left) as a function of saccade bias in the 2AFC motor task for the leftward (black), symmetrical (blue), and rightward (red) biased conditions for all eight cases (24 points in each panel); each symbol represents data from one case. Overall perceived brightness, perceptual noise, and saccade bias have the units of the stimulus (d′), perceptual gain is unitless.