Rodney Brooks. (1991). Intelligence without Representation. Artificial
Intelligence 47, 139-159.

Mark Bickhard. (1993). Representational Content in Humans and Machines. 

Ruth Millikan. (1993). White Queen psychology and other essays for
Alice. Preface & Chapter 4 (Biosemantics). MIT Press.

R.A. Brooks, A robust layered control system for a mobile robot, IEEE
J. Rob. Autom. 2 (1986) 14-23.

Feb 17: Optional 

Charles S. Peirce. (1878). How to make our ideas clear. Popular Science
Monthly, 12, 286-302.

Additional paper by Mark Bickhard is online at:
http://www.lehigh.edu/~mhb0/pubspage.html.

Ruth Millikan. (2004, In press). Varieties of Meaning. Draft online at: http://jeannicod.ccsd.cnrs.fr/perl/searchfr?LANG=en&submit=Search&_order=order1&authors=millikan.

C.K. Ogden and I.A. Richards. (1923). The meaning of meaning.
(excerpt), Harcourt. 

Rosenblueth, Wiener, and Bigelow. (1943). Behavior, Purpose and
Teleology. Philosophy of Science, V 10(1), 18-24.

Gardenfors, P. (1997). Symbolic, conceptual and subconceptual
representations, pp. 255-270 in Human and Machine Perception:
Information Fusion, ed. by V. Cantoni, V. di Gesù, A. Setti and D.
Tegolo, Plenum Press, New York.

Regier, T. and Carlson, L. (2001). Grounding spatial language in
perception: An empirical and computational investigation. Journal of
Experimental Psychology: General, vol. 130(2), 273-298.