Book contents
- Frontmatter
- Contents
- Contributors
- Acknowledgements
- Language: A Darwinian Adaptation?
- Part I The Evolution of Cooperative Communication
- Part II The Emergence of Phonetic Structure
- Part III The Emergence of Syntax
- 13 Introduction: The Emergence of Syntax
- 14 The Spandrels of the Linguistic Genotype
- 15 The Distinction Between Sentences and Noun Phrases: An Impediment to Language Evolution?
- 16 How Protolanguage Became Language
- 17 Holistic Utterances in Protolanguage: The Link from Primates to Humans
- 18 Syntax Without Natural Selection: How Compositionality Emerges from Vocabulary in a Population of Learners
- 19 Social Transmission Favours Linguistic Generalisation
- 20 Words, Memes and Language Evolution
- 21 On the Reconstruction of ‘Proto-World’ Word Order
- Epilogue
- Author Index
- Subject Index
20 - Words, Memes and Language Evolution
Published online by Cambridge University Press: 24 November 2009
- Frontmatter
- Contents
- Contributors
- Acknowledgements
- Language: A Darwinian Adaptation?
- Part I The Evolution of Cooperative Communication
- Part II The Emergence of Phonetic Structure
- Part III The Emergence of Syntax
- 13 Introduction: The Emergence of Syntax
- 14 The Spandrels of the Linguistic Genotype
- 15 The Distinction Between Sentences and Noun Phrases: An Impediment to Language Evolution?
- 16 How Protolanguage Became Language
- 17 Holistic Utterances in Protolanguage: The Link from Primates to Humans
- 18 Syntax Without Natural Selection: How Compositionality Emerges from Vocabulary in a Population of Learners
- 19 Social Transmission Favours Linguistic Generalisation
- 20 Words, Memes and Language Evolution
- 21 On the Reconstruction of ‘Proto-World’ Word Order
- Epilogue
- Author Index
- Subject Index
Summary
Summary
This chapter describes a precise sense in which language change can be regarded as a form of evolution – not of the language itself, but of the individual words which constitute the language. Many prominent features of language can be understood as the result of this evolution.
In a unification-based theory of language, each word sense is represented in the brain by a reentrant feature structure, which embodies the syntax, semantics and phonology of the word. When understanding or generating a sentence, we unify the feature structures of the words in the sentence to form a derivation structure. The feature structure for any word can then be learnt by feature structure generalisation, which complements unification to replicate the word feature structure precisely in a new mind. By this replication, word feature structures propagate precisely from one generation to the next, just as DNA propagates precisely in cell replication. Words are memes.
The precision and transparency of DNA replication underlies the structure and diversity of life. Similarly, the precise and transparent replication of word memes underlies the structure and diversity of language. As word feature structures propagate from generation to generation, they undergo slow changes from selection pressures which cause many types of language regularities.
In this analogy, each language is an ecology, and each word is one species in the ecology. In language as in nature, different species exert selection pressures on one another.
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- The Evolutionary Emergence of LanguageSocial Function and the Origins of Linguistic Form, pp. 353 - 371Publisher: Cambridge University PressPrint publication year: 2000
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