PSYCH 101 Lecture Notes - Lecture 3: Ponzo Illusion, Depth Perception, Retina
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PSYCH 101 Full Course Notes
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Document Summary
Depth perception requires we see distance of objects in our environment. We"re able to see three dimensions out of two dimensional images on the retina: we do this by making use of two cues: Binocular depth cues - cues about depth using both eyes. Convergence - eyes turn inward when they focus on nearby objects. Ex: looking at your finger to cross your eyes. Retinal disparity - slight difference between viewpoints of the two eyes. The closer the object is, the greater the retinal disparity. Monocular depth cues - cues about depth using one eye alone. Accommodation depth cues - the bending o the lends to focus on nearby objects. Lens rounds when focusing on nearby objects but elongates on faraway objects. Muscle sensations attached to lens sends information to the brain where it interprets it as depth. Linear perspective: parallel lines appear to converge at a distance. Relative size - depends on relationship depth and retinal image size.
