CLPS 0200 Lecture Notes - Lecture 2: Zenon Pylyshyn, Stephen Kosslyn, Optical Illusion
11 Nov 2016
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Two perspectives: a literal image of a chair vs. a symbolic description. Symbolic/propositional representations: sentence-like: symbols and rules for combination, not necessarily in a specific language, mentalese . Analog representations: picture-like : spatial relationships of represented item are preserved in the representation, not necessarily visual (spatial, auditory, etc. ) Different representations make different information explicit: which representation is best depends on use and aims. Ex. description of directions (propositional) vs. map (analog) background. Aristotle: memory involves imagery, it is impossible to think without an image . John locke ideas are the pictures drawn in our minds . Bishop george berkeley: can"t conceive of abstract idea , always imagine a particular contemporary debate. Stephen kosslyn analog side of debate. Zenon pylyshyn not enough evidence for image-based point of view empirical results. Argued: literal analog representation of the map and are physically moving a dot: taken as evidence that people can have images in their minds and manipulate them.
