Psych Visual Imagery

Psych Visual Imagery - Visual Imagery Visual Imagery Mental...

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Visual Imagery 1 Mental imagery: Mental representation of an object not physically present Visual imagery: “seeing” an object without a visual stimulus present When do we use imagery? To discriminate between subtle differences To transform objects before moving them To travel a mental route Visual Imagery Is imagery spatial or propositional? Do imagery and perception share the same physiological mechanisms? Similarities Differences Research Questions Spatial representation Propositional representation A representation in terms of visual/spatial properties An image that resembles a real object A representation in terms of language-like descriptions An image that does not resemble a real object “The cat is under the table” Is imagery spatial or propositional?
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Visual Imagery 2 Spatial representations Propositional representations Shepard & Metzler (1971) Kosslyn’s mental scanning experiments Moyer (1973) Kosslyn (1978) – in book Reed (1974) Kosslyn’s mental scanning experiments (Pylyshyn) – in book Behavioral evidence Shepard & Metzler (1971): Showed pairs of abstract objects Asked people to decide if objects were same or different Varied angle of rotation of second object
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This note was uploaded on 12/04/2011 for the course EXP 3604 taught by Professor Fasig during the Fall '08 term at University of Florida.

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Psych Visual Imagery - Visual Imagery Visual Imagery Mental...

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