Extended Data Figure 3-1
Precision and cue integration with larger stimuli. Monkey L also performed the task with 30° planes defined by 550 dots (N = 8360 trials). Four slants (15°, 30°, 45°, and 60°) and six distances (37, 57, 77, 97, 137, and 177 cm) were presented. Slant–distance combinations at which performance was not different from chance (Rayleigh test and Bonferroni corrected) are outlined in black. A–C, Heat maps showing the precision (κ) of tilt perception as a function of slant and distance, calculated using all eight tilts. A, Combined-cue stimuli. B, Stereoscopic cue stimuli. Performance was at chance level for all slants at 177 cm. C, Perspective cue stimuli. D, Cue integration. Each point shows the optimal versus observed combined-cue precision for a single slant–distance combination (N = 24). The Type-II regression line is plotted in yellow. Inset shows the correlation and regression line equation. Download Figure 3-1, TIF file.