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19 Cards in this Set
- Front
- Back
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Quasi perceptual theory of Imagery Kosslyn 1980
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Experimental question
image is generated from ltm in mentalese presented as a surface representation to the visual buffer and interrogated for information |
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Pylyshn
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Propositional codes may present mental images but the codes are interrogated
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Propositional codes
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Not available to consciousness
represented in mentalese analogous to computer code |
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visual buffer
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similar to Marr's 2.5d sketch, edges but no colour or texture
uses multiple arrays |
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introspection
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pylyshn argues no access to structure of mental representation
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visual memory and surface representations
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contrast studies on ab
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phenomenonlogical psychophysics
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mental rotation
mental scanning |
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Anderson 1978
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Analogue/propositional indistinguishable on basis of mental rotation etc.
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Pylyshyn 1984
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Images are cognatively penetrable (changeable) to beliefs and goals therefore they must be propositional and not analogue
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Johnson-Laird 1983
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images and beliefs both high level constructs - doesnt mean they are irrelevant (epiphenomenal
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Pinker and Kosslyn 1983
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Array Theory - pattern of active cells in array - array files - LTM files - like pixels on a computer screen
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Kosslyn 1994
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spatial medium, spatially extended and limited, preserves spatial relatinship, greatest resolution at centre - propositional files, skeletal images, analogue files detailed,
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Kosslyn & Susman 1995
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mental imagery plays an integral role in perception
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Farah 1988
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2/3rds common neural mechanisms
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Kosslyn et al 1993
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PET scans topographically organised in the visual corted.
Imaginal - anterior medial occipital lobe perceptual - medial occipital lobe double dissociations |
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Kosslyn & Sussman 1995
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object recognition - matching input to stored represnentation
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Lowe 1985
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cog systems generate best fit - augment missing detail
gestalt |
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motor imagery
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golf - st andrews university 2009
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triesman and southern 1985
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pop out effect - differences occur mainly at pre-attentive stage of perceptual processing - do not support tacit knowledge
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