Perception and Perceptual Distortions. Vaughan Bell [email protected] Outline. We are going to focus on Visual Perception Approaches: David Marr - Bottom-Up Computational Account Richard Gregory – Top-Down Influence JJ Gibson - An Ecological Approach
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This involves the extraction of information regarding edges and intensity changes.
Things that are close together seem part of the same group.
Things that are similar seem part of the same group.
We see this as two crossing lines, rather than two ‘V’ shapes.
Images are seen to form closed rather than open patterns.
Each eye receives a slight different image of the world from which 3D positions can be inferred.
Surfaces appear to have a finer texture as they recede into the distance.
Lines will appear to draw closer together as they go farther into the distance.
Nearer objects appear to cover over more distant objects.