Article Depth Perception 1 Depth perception 1 Form Perception 1 Humans 1 Illusion 1 Judgment 1 Optical Illusions 1 Orientation 1 Pupil 1 Pupil light reflex 1 Pupillometry 1 Shape from shading 1 adult 1 attention 1 binocular convergence 1 clinical assessment 1 comparative study 1 controlled study 1 darkness 1 decision making 1 depth perception 1 event related potential 1 female 1 gaze 1 heuristics 1 human 1 illumination 1 illusion of depth 1 image processing 1