CGSC 2001 Lecture Notes - Lecture 4: Turing Machine, Shrdlu, Mental Rotation

• School: Carleton University
• Department: Cognitive Science
• Course: CGSC 2001
• Professor: Katarzyna Muldner

Document Summary

Ideas about how the mind works are written into programs. Test ideas by seeing how the computational program works: eliza, eugene, shrdlu, ai - implementing cognitive theories into computers. Propositional theory (pylyshyn): mind decomposes imaged into underlying symbolic descriptions. Ball is red , ball is to the left of the pyramid . Spatial representational theory (kosslyn): some elements are not represented as propositions but rather mental, analogous, three-dimensional models. Some information processing involved operations on geometrically encoded representations. Crucial idea in cognitive science: the mind can be studied from many different perspectives/levels: bottom-up approach: start with the brain and move to higher level thinking. Tuesday january 20, 2015: top-down approach: start with high-level cognitive processes and move backwards (down) Distinguished different levels of explanation for cognitive processes. Gave general theoretical framework for combining them. Applied framework in considerable detail to single example the early visual system.