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The Communicative Mind

Photograph of Dr Richard Moore with orangutan

There are five species of great ape: humans (Homo sapiens), chimpanzees (Pan paniscus), bonobos (Pan troglodytes), gorillas (Gorilla) and orangutans (Pongo). However only humans acquire language. Why is this?

According to a standard view (Tomasello 2008) humans alone acquire language because we possess biological adaptations for Theory of Mind ('ToM') – the ability to think about others' mental states – that great apes lack. These enable us to act with and attribute the 'Gricean' (Grice 1957) communicative intentions that are necessary for natural language development. Since great apes lack ToM, they can neither attribute communicative intentions nor acquire language. Problematically for the standard view, though, the ToM thought necessary for Gricean communication seems to develop only as a result of language acquisition (e.g. Lohmann & Tomasello, 2003). If the mindreading needed for communication is itself language dependent, then it cannot contribute to an explanation of language acquisition. Since new empirical data (Krupenye & Kano et al., 2016) shows that the ToM of great apes is similar to that of pre-verbal infants, the standard view also leaves the absence of language in great apes unexplained.

To dissolve these explanatory puzzles, the Communicative Mind project will develop a new account of the relationship between ToM, language, and communication. From the starting assumption that both great apes and human infants can act with and attribute communicative intent (Moore 2017a), the project will set out to establish that key socio-cognitive differences between humans and apes are culturally learned, not biologically inherited. They emerge because humans but not apes can use syntactically structured utterances to communicate, and because on the back of this ability generations of language-users have developed linguistic tools for theorising about mental states. Thus, it is not ToM that explains the development of language, but syntax and the cultural evolution of language that explains the development of ToM. Children learn to use these tools in ontogeny, through cultural practices of conversation and storytelling, and thereby acquire new tools for thinking about minds.

Using ideas and methods drawn from Philosophy, Linguistics, and Developmental and Comparative Psychology, the Communicative Mind project will develop new accounts of the evolution of language in phylogeny, and of the development of ToM in ontogeny. This will include accounts of the developmental relationship between syntax mastery and the ability to represent what others know; of the phylogenetic emergence in humans of a cognitive architecture that allows us, but not our great ape cousins, to use syntax; of the cultural evolution of the elements of syntax used for ToM talk in natural languages; and of the cultural variation in ToM talk. By showing that uniquely human cognitive traits emerge through language and communicative interaction, we will demonstrate the fundamentally social foundations of human thinking.

This project is supported by a UKRI Future Leaders Fellowship awarded to Richard Moore. The project started in February 2020 and will initially last for four years.

Recommended Background Reading

Apperly IA, Butterfill SA (2009) Do humans have two systems to track beliefs and belief-like states? Psychological Review, 116(4), 953-70.

Helming KA, Strickland B, Jacob P (2016) Solving the puzzle about early belief‐ascription. Mind & Language, 31(4), 438-69.

Evans N, Wilkins D (2000) In the mind's ear: The semantic extensions of perception verbs in Australian languages. Language, 546-92.

Grice HP (1957) Meaning. The Philosophical Review, 377-88.

Heyes CM, Frith CD (2014) The cultural evolution of mind reading. Science, 344(6190): 1243091.

Krupenye C, Kano F, Hirata S, Call J, Tomasello M (2016) Great apes anticipate that other individuals will act according to false beliefs. Science, 354(6308), 110-4.

Lillard A (1998) Ethnopsychologies: Cultural variations in theories of mind. Psychological Bulletin, 123(1), 3-32.

Lohmann H, Tomasello M. The role of language in the development of false belief understanding: A training study. Child Development, 74(4), 1130-44.

Moore R (2017a) Gricean communication and cognitive development. Philosophical Quarterly, 67(267), 303-326.

Moore R (2017b) Social cognition, Stag Hunts, and the evolution of language. Biology and Philosophy. 32(6), 797–818.

Moore R (2018) Gricean communication, language development, and animal minds. Philosophy Compass, 13(12): e12550.

Rubio-Fernández P, Mollica F, Ali MO, Gibson E (2019) How do you know that? Automatic belief inferences in passing conversation. Cognition, 193: 104011.

Tomasello M (2008) Origins of Human Communication. MIT Press.

Online Lab Meeting

Fridays, 11:30-13:00. All are welcome; contact Richard Moore for details.

Project Members

Dr Richard Moore (UKRI Future Leaders Fellow)

Dr Katharina Helming (Post-Doctoral Research Fellow, Department of Psychology)

Project Advisors

Professor Sotaro Kita (Department of Psychology, University of Warwick)

Dr Paula Rubio-Fernandez (Senior Research Fellow, University of Oslo)

Professor Nick Evans (Director, ARC Centre of Excellence for the Dynamics of Language, Australian National University)


Professor Steve Butterfill (Department of Philosophy, University of Warwick)

Dr Leda Berio (Post-Doctoral Researcher, Department of Philosophy, Heinrich-Heine-Universität Düsseldorf)