Course introducing Cognitive Science Title: Mind, Computers and Human Behavior [Changed to Introduction to Cognitive Science] Overview Our ideas of how the mind works underlie many facets of our lives, including how we learn, speak and reason. How do we really think? And how can we describe the way we think? Those are the questions that cognitive science seeks to answer. This course introduces cognitive science, an interdisciplinary field that draws upon aspects of cognitive psychology, philosophy, linguistics, anthropology, education, neuroscience and artificial intelligence. Its unifying goal is to construct and evaluate process-oriented theories of how people think and reason. Researchers in cognitive science typically work under the assumption that processes of human thinking can be understood in computational terms. Students will read articles describing cognitive models and discuss how well the model accounts for human behavior. When possible, the articles will be chosen from journals such as Cognitive Science. For projects, students will experiment with computer programs that purport to be models or simulations of some aspect of human cognition. In some cases, the goal will be to modify these programs and then re-evaluate them as a new scientific theory. Students will discuss to what extent these models constitute an explanation for how people think as well as debate whether certain models serve as viable scientific theories. Learning Outcomes At the end of the course, students will be able to Work with formal representations to solve problems. Run working models under a variety of conditions. Apply a variety of models that instantiate contrasting theories. Write articles that describe an experimental procedure, its results and what can be concluded from the experiment. Present theories and models and explain how well they account for human behavior. Explain how physical brain mechanisms may implement cognitive functions. Reflect on their own thinking and articulate their strategies for solving problems. Examples of Models and Areas of Inquiry The choice of models and human abilities will vary with the instructor’s interest and expertise. However, the instructor should try to use a variety of models that perform tasks in different areas. Here are some examples: Visual information processing: perceptual illusions and the use of specialpurpose, modular models for explaining them. Speech perception: identifying evidence for and against modular mechanisms. Language: using rule-based systems to simulate verb conjugation, sentence parsing or word pronunciation. Categorization: using artificial neurons to learn to classify objects. Human memory: what people remember from a list and how cognitive models explain which items people remember. Elementary scholastic skills: a rule-based system that performs subtraction problems. Rules can be deleted to show common problems observed with elementary school children. Puzzles: running computer programs that solve popular puzzles such as the Towers of Hanoi or the 8-Tile puzzle. In all cases, the projects should involve working computer programs that students can experiment with. Ideally, students should be able to modify some aspect of the model’s behavior and further evaluate the model’s fit to human behavior. Example Readings Newell, A. (1973). You can’t play 20 questions with nature and win. In W. G. Chase (Ed.), Visual Information Processing (pp. 283-308). New York: Academic Press. Polk, T and Seifert, C. (Eds.). (2002). Cognitive Modeling. MIT Press. Bechtel and Graham (Eds.). (1999). A Companion to Cognitive Science. Blackwell Publishers. Bransford et al (Eds). (2000). How People Learn: Brain, Mind, Experience, and School. National Research Council. Fodor, J. A. (1983). The Modularity of Mind. Cambridge, MA: MIT Press. McGurk & McDonald. (1976). Hearing lips and seeing voices. Nature, 264:746-748. Samuel, A. G. (1981). Phonemic restoration: Insights from a new methodology. Journal of Experimental Psychology: General, 110(4), 474-494.