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What does mid level vision do?
combine and organize the environmental information encoded from the senses.
What are the principles of figure/ground?
- surrounded region
- smaller region
- symmetrical region
- region with parallel contours
- (edge of object provides ability to perceive it in relation to the background environment)
What are the Gestalt grouping rules?
set of rules describing which elements in an image will appear to group together.
What are illusory contours?
the ability to perceive an object when it has no variations in contour, but rather the contour is implied.
What are the types of grouping?
- proximity (items near each other are more likely to group together than are items more widely separated)
- similarity (more likely grouped together when image chunks are similar to each other)
Who are nativists?
belief that you are born with the ability to perceive objects.
What is the global superiority effect?
ability to perceive the big picture of a complex object before the local (individual/smaller) picture of a complex object.
What is implicit interpretation?
the way a person initially perceives an object before being informed how to perceive otherwise in objects of ambiguity.
What are the components of figure/ground object recognition?
parallelism (rule for figure/ground assignment stating that parallel contours are likely to belong to the same figure)symmetry (rule for figure/ground assignments stating that symmetrical regions are more likely to be seen as figure)
What is the Bayesian approach?
way of formalizing the idea that our perception is a combination of the current stimulus and our knowledge about the conditions of the world with what is and is not likely to occur.
What is context effect?
the influence people feel to perceive an ambiguous figure in a certain way whether it's seeing a lamp or two faces on either side of the lamp.
What is template matching?
matching images placed on the retina to the image information stored in our long term memory.
What is feature analysis?
breaking down the feature into its individual parts and identifying which figure those features best correspond with
What is Recognition by Components?
Identifying an object based on the geons that represent it (identities and relationships of their component parts, distinguishable from any perspective)
What is face perception?
ability to perceive a person's face based on the distance between their facial features (distance between eyes, width of nose and mouth)
What is the "what" pathway?
the what pathway is centered in the temporal lobe and gives us the ability to differentiate between various objects.
What is the inferotemporal pathway?
pathway that enables us to perceive and hone in on specific stimuli.
What is agnosia?
damage to the temporal lobe that prevents us from identifying shapes.
What is prosopagnosia?
inability to recognize familiar face, results from damage to inferotemporal pathway.
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