Barbet, I. & Fagot, J. (2002). Perception of the corridor illusion by baboons. Behavioural Brain Research, 132, 111-115.

Brinck, I. (2003). The pragmatics of imperative and declarative pointing, Cognitive Science Quarterly, 3(4), 2003, 429-446.

Brinck, I. & Gärdenfors, P. (2003). Co-operation and communication in apes and humans, Mind and Language, 18(5), 484-501.

Call, J. (2001). Body imitation in an enculturated orangutan (Pongo pygmaeus). Cybernetics and Systems, 32(1-2), 97-119.

Christiansen, M. H. & Kirby S., (2003). (Eds.) Language evolution. Oxford: Oxford University Press.

Davidoff, J., Davies, I. & Roberson, D. (1999). Colour categories of a stone-age tribe. Nature, 398, 203-204.

Donald, M. (1991). Origins of the modern mind. Three stages in the evolution of culture and cognition, Cambridge, Mass.: Harvard University Press.

Fagot, J. & Tomonaga, M. (1999). Comparative assessment of global-local processing in humans (Homo sapiens) and chimpanzees (Pan troglodytes): Use of a visual search task with compound stimuli. Journal of Comp. Psychology, 113, 3-12.

Fagot, J., Goldstein, J., Davidoff, J. & Pickering, A. (in press). Cross species differences in colour categorisation. Psychonomic bulletin and review.

Gibson, J. (1982). Reasons for realism. Selected essays of James J. Gibson, E. Reed & R. Jones (Eds.). Hillsdale, NJ: Lawrence Erlbaum.

Hare, B., Call, J., & Tomasello, M., (2001). Do chimpanzees know what conspecifics know and do not know? Animal Behaviour, 61, 139-151.

Heaton (in press). Interval and contour processing in autism. Journal of Autism and Developmental Disorders.

Peirce, C. S. (1931-58). Collected Papers I-VIII. Hartshorne, C, Weiss, P, & Burks, A, (Eds.). Cambridge, MA: Harvard University Press.

Piaget, J. (1945). La formation du symbole chez l'enfant. Neuchatel: Delachaux & Niestlé. Third edition 1967.

Potì, P., Bartolommei, P. & Saporiti, M. (2005). Landmark use by Cebus apella. International Journal of Primatology, 26 (4), 921-948.

Preston, S. D. and de Waal, F. B. M. (2002). Empathy: its ultimate and proximal causes. Behavioral and Brain Sciences, 25, 1-20.

Reddy, V. (1983). Responsiveness and rules: Parent-child interaction in Scotland and India. Unpublished PhD Thesis, University of Edinburgh.

Reddy, V. (1991). Teasing, joking and mucking about in the first year. In A. Whiten (Ed.) Natural theories of mind (pp. 143-158). Oxford: Blackwell.

Sampaio, W., Sinha, C. and da Silva Sinha, W. (in press) Mixing and mapping: motion and manner in Amondawa. In E. Lieven (Ed.) Crosslinguistic Approaches to the Psychology of Language: Research in the Tradition of Dan Slobin. Mahwah, NJ: Lawrence Earlbaum Associates.

Sonesson, G. (2000). Iconicity in the ecology of semiosis. In T. D. Johansson, M. Skov & B. Brogaard (Eds.) Iconicity - a fundamental problem in semiotics, (pp 59-80). Aarhus: NSU Press.

Spinozzi G., De Lillo C., & Truppa V. (2003). Global and local processing of hierarchical visual stimuli in tufted capuchin monkeys (Cebus apella). Journal of Comparative Psychology, 117, 15-23.

Tomasello, M. (1999). The cultural origins of human cognition. Cambridge, MA: Harvard University Press.

Tomasello, M., Call, J., Warren, J., Frost, G. T., Carpenter, M., & Nagell, K. (1997). The ontogeny of chimpanzee gestural signals: A comparison across groups and generations. Evolution of Communication, 1, 223-259.

Zlatev, J., Persson, T. & Gärdenfors, P. (2005). Bodily mimesis as the "missing link" in human cognitive evolution. LUCS 121. Lund: Lund University.