Linguistic complexity – manifested in terms of hierarchical recursive structures generated by grammar – is often discussed from the perspective of cross-linguistic comparison (cf. Everett, 2005; Nevins, Pesetsky, & Rodrigues, 2009 on Pirahã). In this paper, we focus instead on the variation in complexity within a single language, English, and on the lower bound of complexity, specifically (cf. Futrell et al., 2016). We report results of two studies, a corpus study (Study 1) and a production experiment (Study 2), that investigate syntactic complexity of expressions that arise in the context of human-computer interaction and compare them to the standard language. The results of both studies show that the expressions generated in the context of human-computer interaction exhibit lesser structural complexity and often violate the norm of the language (cf. margaret mead culture famous research). Our results suggest that such expressions are generated by a qualitatively different type of formal grammar, Linear Grammar (Jackendoff & Wittenberg, 2017), rather than by recursive grammar (Roeper, 1999).

Variation in Linguistic Complexity and its Cognitive Underpinning


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Poster Session 2 -  E: Linguistics

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**Dear Colleagues,**

Welcome to the 43rd Annual Conference of the Cognitive Science Society! 

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CogSci 2021

The Cognitive Science Society brings together researchers from around the world who hold a common goal: understanding the nature of the human mind. The mission of the Society is to promote Cognitive Science as a discipline, and to foster scientific interchange among researchers in various areas of study, including Artificial Intelligence, Linguistics, Anthropology, Psychology, Neuroscience, Philosophy, and Education. The Society is a non-profit professional organization and its activities include sponsoring an annual conference and publishing the journals Cognitive Science and TopiCS.

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