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A novel evolutionary perspective on language: The advantage of arbitrariness and roots of discreteness

Project description

The adaptive role of arbitrariness in human communication

Language is a fascinating mystery in human evolution, though its origins remain unclear. A key feature of human language is the arbitrary relationship between form and meaning. However, the benefits of arbitrariness are often overlooked. Supported by the Marie Skłodowska-Curie Actions programme, the ArbEvo project will demonstrate how arbitrariness in communication functions as an adaptive behavioural trait. It suggests that arbitrariness enhances communication in noisy environments. The project will show how separating form from meaning reduces ambiguity, particularly in context, and will examine the effects of natural noise on communication. Furthermore, it will highlight the role of arbitrariness in creating discrete communication systems, an important factor in the development of complex linguistic features.

Objective

Language is one of the greatest mysteries in the evolution of humankind. It is a remarkable phenomenon that appears to be distinct from other animal communication system, and yet its evolutionary roots remain far from clear. One interesting feature of human language, that does not seem to exist in other communication systems, is the arbitrary relationship between form and meaning. In recent years, many studies have emphasised cases of non-arbitrariness, such as iconicity, and pointed to its advantages for communication, but the merits of arbitrariness itself are rarely considered. This project takes a novel perspective and aims to demonstrate the potential advantage of arbitrariness, in order to elucidate it as an evolutionary adaptive behavioural trait. The specific proposal is that arbitrariness supports communication under noisy conditions. A combination of cross-linguistic comparison, laboratory psycholinguistic experiments, and computational modelling will illuminate the role of arbitrariness in efficient communication. It will demonstrate how decoupling form and meaning reduces ambiguities, when context is available, and explore the effects of various types of naturally occurring noise. The project aims to further demonstrate the role of another quality of arbitrariness: that is, the induction of a discrete communication system. This has consequences for the emergence of complex linguistic characteristics, such as syntax and compositionality. By integrating ideas from distinct fields, such as the evolution of animal communication, and cross-cultural and cross-linguistic human studies, the project has the potential to set forth a novel theory about key aspects of the evolution of language.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
Net EU contribution
€ 276 187,92
Address
WELLINGTON SQUARE UNIVERSITY OFFICES
OX1 2JD Oxford
United Kingdom
Region
South East (England) Berkshire, Buckinghamshire and Oxfordshire Oxfordshire
Activity type
Higher or Secondary Education Establishments
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Total cost
No data