PSYCO104 Lecture Notes - Depth Perception, Retina, Occipital Lobe

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Published on 24 Nov 2011
School
University of Alberta
Department
Psychology
Course
PSYCO104
Psychology
Chapter 4: Vision continued
1
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1. Depth perception
Depth perception results from a
combination of binocluar & monocular
cues.
a)Binocular:
i. Retinal disparity
ii.Convergence
2
Info from one eye- 2 monoculor cues. Both eyes- binoculor 7
Even if you poke one eye out you can still perceive some depth
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Document Summary

1 combination of binocluar & monocular: depth perception, depth perception results from a cues. a)binocular, retinal disparity ii. convergence. Even if you poke one eye out you can still perceive some depth: depth perception i. retinal disparity: objects at different distances fall on different locations on the retina. The farther an object the location changes on the retina. Neurons calculate where on retina and calculates how far object is. Disparity on retina is a cue our eyes use: depth perception i. convergence: your brain controls extraoccular muscles so it can calculate the angle between the eyes. Brain controls muscles to calculate angle between the eyes. The closer the angle the father away(?: depth perception a)monocular, interposition ii. linear perspective iii. texture iv. haze v. shading vi. elevation vii. motion parallax. 5 i)if something is closer to you it blocks things that are farther away. Brain uses shading information knowing light comes from above and makes 2d image into 3d/shading image.

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