Psychonomic Bulletin & Review

, Volume 24, Issue 1, pp 171–174

Marr’s levels and the minimalist program


DOI: 10.3758/s13423-016-1062-1

Cite this article as:
Johnson, M. Psychon Bull Rev (2017) 24: 171. doi:10.3758/s13423-016-1062-1


A simple change to a cognitive system at Marr’s computational level may entail complex changes at the other levels of description of the system. The implementational level complexity of a change, rather than its computational level complexity, may be more closely related to the plausibility of a discrete evolutionary event causing that change. Thus the formal complexity of a change at the computational level may not be a good guide to the plausibility of an evolutionary event introducing that change. For example, while the Minimalist Program’s Merge is a simple formal operation (Berwick & Chomsky, 2016), the computational mechanisms required to implement the language it generates (e.g., to parse the language) may be considerably more complex. This has implications for the theory of grammar: theories of grammar which involve several kinds of syntactic operations may be no less evolutionarily plausible than a theory of grammar that involves only one. A deeper understanding of human language at the algorithmic and implementational levels could strengthen Minimalist Program’s account of the evolution of language.


Evolution Language 

Copyright information

© Psychonomic Society, Inc. 2016

Authors and Affiliations

  1. 1.Macquarie University, Computer ScienceSydneyAustralia

Personalised recommendations