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images (mental representation
4 main formats (Pinker) (differences…
images
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- mental rotation experiment
why result were thought to challenge pure descriptionalism
experiment: subjects were asked to make a judgment of identity: is x same as y
result: reaction time and degree of angular rotation -- take longer when objects are rotated more
moral: pure symbolic description is false -- b/c reaction time is different; if visual image encoded by symbol, the recall should be the same (b/c of same search routine.
- pictorialism vs descriptionalism
pictorialism
- images do not reduce to mentalese
- there is a unique kind of processing for images tied to the appropriate sense modality (eg. visual images are tied to the processes for visual perception, etc.)
descriptionalism
- if images exist, they reduce to description in a language-like mentalese
- all processing is symbol processing
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- issue of demand characteristics
- why Pylyshyn thinks experiments support descriptionalism