Psychology PSYC 538/740, Winter 2015:
Categorization, Communication and Consciousness
Time: Wed 8:30-11:30
Place: BURN 1B23
Instructor: Stevan Harnad
Office: Stewart W7/3m
Skype: sharnad
Google+hangout: amsciforum@gmail.com
Google+hangout: amsciforum@gmail.com
E-mail: harnad@uqam.ca (don’t use my mcgill email address because I don’t check it regularly)
Open to students interested in Cognitive Science from the Departments of Linguistics, Philosophy, Psychology, Computer Science, or Neuroscience.
Overview: What is cognition? Cognition is whatever is going on inside our heads when we think, enabling us to do all the things we can do-- to learn and to act adaptively, so we can survive and reproduce. Cognitive science tries to explain the internal mechanismthat generates that know-how. The brain is the natural place to look for the explanation, but that’s not enough. Unlike the mechanisms that generate the capacities of other bodily organs such as the heart or the lungs, the brain’s capacities are too vast, complex and opaque to be read off by direct observation or manipulation. The brain can do everything that we can do. Computational modeling and robotics try, alongside behavioral neuroscience, to design and test mechanisms that can also do everything we can do, thereby explaining how the brain does them. The challenge of the celebrated "Turing test" is to design a model that can do everything we can do, to the point where we can no longer tell apart the model’s performance from our own. The model not only has to generate our sensorimotor capacities – the ability to do everything with the objects and organisms in the world that we are able do with them -- but it must also be able to produce and understand language, just as we do. What is language, and what was its adaptive value such that we are the only species on the planet that has it? And what is consciousness? We are not the only conscious organisms, but what is consciousness for? What is its function, its adaptive value?
Objectives: This course will outline the main challenges that cognitive science, still very incomplete, faces today, focusing on the capacity to learn sensorimotor categories, to name and describe them verbally, and to transmit them to others, concluding with cognition distributed on the Web.
Objectives: This course will outline the main challenges that cognitive science, still very incomplete, faces today, focusing on the capacity to learn sensorimotor categories, to name and describe them verbally, and to transmit them to others, concluding with cognition distributed on the Web.
What is (and is not) computation? What is the power and scope of computation? What does it mean to say (or deny) that “cognition is computation”?
Readings:
1a. Pylyshyn, Z (1989) Computation in cognitive science. In MI Posner (Ed.) Foundations of Cognitive Science. MIT Press
1b. Harnad, S. (2009) Cohabitation: Computation at 70, Cognition at 20, in Dedrick, D., Eds. Cognition, Computation, and Pylyshyn. MIT Press http://eprints.ecs.soton.ac.uk/12092/
2. The Turing test
What’s wrong and right about Turing’s proposal for explaining cognition?
Readings:
2a. Turing, A.M. (1950) Computing Machinery and Intelligence. Mind 49 433-460 http://cogprints.org/499/
2b. Harnad, S. (2008) The Annotation Game: On Turing (1950) on Computing,Machinery and Intelligence. In: Epstein, Robert & Peters, Grace (Eds.) Parsing the Turing Test: Philosophical and Methodological Issues in the Quest for the Thinking Computer. Springer http://eprints.ecs.soton.ac.uk/12954/
3. Searle's Chinese room argument (against the computational theory of cognition)
What’s wrong and right about Searle’s Chinese room argument that cognition is not computation?
Readings:
3a. Searle, John. R. (1980) Minds, brains, and programs. Behavioral and Brain Sciences 3 (3): 417-457
3b. Harnad, S. (2001) What's Wrong and Right About Searle's Chinese RoomArgument? In: M. Bishop & J. Preston (eds.) Essays on Searle's Chinese Room Argument. Oxford University Press. http://cogprints.org/1622/
4. What about the brain?
Why is there controversy over whether neuroscience is relevent to explaining cognition?
Readings:
4a. Rizzolatti G & Craighero L (2004) The Mirror-Neuron System. Annual Review of Neuroscience 27L 169-92
4b. Fodor, J. (1999) "Why, why, does everyone go on so about thebrain?" London Review of Books 21(19) 68-69. http://www.lrb.co.uk/v21/n19/jerry-fodor/diary
What is the “symbol grounding problem,” and how can it be solved? (The meaning of words must be grounded in sensorimotor categories.)
Readings:
5. Harnad, S. (2003) The Symbol Grounding Problem. Encylopedia of Cognitive Science. Nature Publishing Group. Macmillan. http://eprints.ecs.soton.ac.uk/7720
[Google also for other online sources for “The Symbol Grounding Problem”]
6. Categorization and cognition
That categorization is cognition makes sense, but “cognition is categorization”? (On the power and generality of categorization.)
Readings:
6a. Harnad, S. (2005) To Cognize is to Categorize: Cognition is Categorization, in Lefebvre, C. and Cohen, H., Eds. Handbook of Categorization. Elsevier. http://eprints.ecs.soton.ac.uk/11725/
6b. Harnad, S. (2003) Categorical Perception. Encyclopedia of Cognitive Science. Nature Publishing Group. Macmillan. http://eprints.ecs.soton.ac.uk/7719/
7. Evolution and cognition
Why is it that some evolutionary explanations sound plausible and make sense, whereas others seem far-fetched or even absurd?
Readings:
7a. Confer, Jaime C., Judith A. Easton, Diana S. Fleischman, Cari D. Goetz, David M. G. Lewis, Carin Perilloux, and David M. Buss (2010) Evolutionary Psychology Controversies, Questions, Prospects, and Limitations. American Psychologist 65 (2): 110–126
7b. Bolhuis JJ, Brown GR, Richardson RC, Laland KN (2011) Darwin in Mind: New Opportunities for Evolutionary Psychology. PLoS Biol 9(7)
8. The evolution of language
What’s wrong and right about Steve Pinker’s views on language evolution? And what was so special about language that the capacity to acquire it became evolutionarily encoded in the brains of our ancestors – and of no other surviving species – about 300,000 years ago? (It gave our species a unique new way to acquire categories, through symbolic instruction rather than just direct sensorimotor induction.)
Readings:
8a. Pinker, S. & Bloom, P. (1990). Natural language and natural selection. Behavioral and Brain Sciences13(4): 707-784. http://pinker.wjh.harvard.edu/articles/papers/Pinker%20Bloom%201990.pdf
8b. Blondin Massé et al (2012) Symbol Grounding and the Origin of Language: From Show to Tell. In: Origins of Language. Cognitive Sciences Institute. Université du Québec à Montréal, June 2010. http://eprints.ecs.soton.ac.uk/21438/
9. Chomsky and the poverty of the stimulus
A close look at one of the most controversial issues at the heart of cognitive science: Chomsky’s view that Universal Grammar has to be inborn because it cannot be learned from the data available to the language-learning child.
Readings:
9a. Pinker, S. Language Acquisition. in L. R. Gleitman, M. Liberman, and D. N. Osherson (Eds.), An Invitation to Cognitive Science, 2nd Ed. Volume 1: Language. Cambridge, MA: MIT Press. http://users.ecs.soton.ac.uk/harnad/Papers/Py104/pinker.langacq.html
9b. Pullum, G.K. & Scholz BC (2002) Empirical assessment of stimulus poverty arguments. Linguistic Review 19: 9-50 http://www.ucd.ie/artspgs/research/pullum.pdf
10. The mind/body problem and the explanatory gap
Once we can pass the Turing test -- because we can generate and explain everything that cognizers are able to do -- will we have explained all there is to explain about the mind? Or will something still be left out?
Readings:
10a. Dennett, D. (unpublished) The fantasy of first-person science. http://ase.tufts.edu/cogstud/papers/chalmersdeb3dft.htm
10b. Harnad, S. (unpublished) OnDennett on Consciousness: The Mind/Body Problem is the Feeling/Function Problem. http://cogprints.org/2130
10c. Harnad, S. (2002) Doing, Feeling, Meaning and Explaining
10d. Harnad, S. & Scherzer, P. (2008) Spielberg's AI:Another Cuddly No-Brainer. Artificial Intelligence in Medicine 44(2): 83-89 http://eprints.ecs.soton.ac.uk/14430/
10e. Harnad, S. (2012) Alan Turing and the “hard” and “easy” problem of cognition: doing and feeling. [in special issue: Turing Year 2012] Turing100: Essays in Honour of Centenary Turing Year 2012, Summer Issue
11. Distributed cognition and the World Wide Web
Can a mind be wider than a head? Collective cognition in the online era: the Cognitive Commons.
Readings:
Clark, A. & Chalmers, D. (1998) The Extended Mind. Analysis58(1) http://www.cogs.indiana.edu/andy/TheExtendedMind.pdf
Dror, I. & Harnad, S. (2009) Offloading Cognition onto CognitiveTechnology. In Dror & Harnad (Eds): Cognition Distributed: How Cognitive Technology Extends Our Minds. Amsterdam: John Benjamins http://eprints.ecs.soton.ac.uk/16602/
X. For Psyc 740 grad students only:
Chalmers, D.J. (2011) "A Computational Foundation for the Study of Cognition". Journal of Cognitive Science 12: 323-57
Harnad, Stevan (2012) The Causal Topography of Cognition. Journal of Cognitive Science. 13(2): 181-196 [commentary on: Chalmers, David: “A Computational Foundation for the Study of Cognition”]
Chalmers, D.J. (2012) "The Varieties of Computation: A Reply to Commentators". Journal of Cognitive Science, 13:211-48.
12. Overview
Drawing it all together.
Evaluation:
1. Blog skywriting -- quote/commentary on all 24 readings: 30 marks
2. Class discussion -- (do more skywritings if you are shy to speak in class)
3. Midterm -- 6 online questions (about 250 words for each answer): 10 marks
4. Final -- 8 online integrative questions (about 500 words each answer) : 40 marks
Course website: http://CatComCon2015.blogspot.ca
Use your gmail account to register to comment, and either use your real name or send me an email to tell me what pseudonym you are using (so I can give you credit).
Every week, everyone does at least one blog comment on each of that (coming) week’s two papers. In your blog comments, quote the passage on which you are commenting (italics, indent). Comments can also be on the comments of others.
Make sure you first edit your comment in another text processor, because if you do it directly in the blogger window you may lose it and have to write it all over again. Also, check how many comments have been made, and if they are close to 50, go to the overflow comments because blogger only allows 50 in each batch. (Each paper has room for a first 50 and then an oveflow 50.)
Also do your comments early in the week or I may not be able to get to them in time to reply. (I won't be replying to all comments, just the ones where I think I have something interesting to add. You should comment on one another's comments too -- that counts -- but make sure you're basing it on having read the original skyreading too.)
Make sure you first edit your comment in another text processor, because if you do it directly in the blogger window you may lose it and have to write it all over again. Also, check how many comments have been made, and if they are close to 50, go to the overflow comments because blogger only allows 50 in each batch. (Each paper has room for a first 50 and then an oveflow 50.)
Also do your comments early in the week or I may not be able to get to them in time to reply. (I won't be replying to all comments, just the ones where I think I have something interesting to add. You should comment on one another's comments too -- that counts -- but make sure you're basing it on having read the original skyreading too.)
For samples, see summer school: http://turingc.blogspot.ca
