Hackett, Callum. In progress. Chomskenstein: How to do nativist psychology without private languages.

Hackett, Callum. In progress. The real logical problem of language acquisition: Symbol grounding in T-model syntax.

Hackett, Callum. 2017. Justifications for a discontinuity theory of language evolution. Biolinguistics 11. 171-220.

Talks 2019

An integrated theory of communication: Defining and testing for semantics in nonhuman signals. Protolang 6, Lisbon.

Talks 2018

Syntax: One interface or two? Annual Meeting of the Linguistics Association of Great Britain (LAGB) 2018, University of Sheffield.

On the insufficiency of form to determine meaning. Workshop on Form-Meaning Mismatches in Natural Language, Georg-August-Universität Göttingen.

Syntax without words. North East Language & Linguistics (NELLi) Research Away Day, Newcastle upon Tyne.

A taxonomy of ambiguity in competence and performance. University of Tübingen RTG 1808 Colloquium.

Talks 2017

Universals of INFL: Challenges from Maybrat. Tenselessness Workshop, University of Greenwich.

The evolution of linguistics and the evolution of language. Durham Castle Conference.

Principles and parameters in the 21st century. Linguistics and English Language (LEL) Postgraduate Conference 2017, University of Edinburgh.

A variational model of root infinitives during language acquisition. 12th Newcastle upon Tyne Postgraduate Conference in Linguistics.