Volume 92, Issue 4 p. 1439-1457
Empirical Article

The Development of Simile Comprehension: From Similarity to Scalar Implicature

Madeleine Long

Madeleine Long

University of Oslo

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Vishakha Shukla

Vishakha Shukla

University of Oslo

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Paula Rubio-Fernandez

Corresponding Author

Paula Rubio-Fernandez

University of Oslo

Massachusetts Institute of Technology

Correspondence concerning this article should be addressed to Paula Rubio-Fernández, University of Oslo, Oslo, Norway. Electronic mail may be sent to [email protected].

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First published: 25 January 2021

This research was supported by a FRIPRO Grant from the Research Council of Norway (Ref. 275505) awarded to Paula Rubio-Fernandez. The authors gratefully acknowledge this funding.

Abstract

Similes require two different pragmatic skills: appreciating the intended similarity and deriving a scalar implicature (e.g., “Lucy is like a parrot” normally implies that Lucy is not a parrot), but previous studies overlooked this second skill. In Experiment 1, preschoolers (N = 48; ages 3–5) understood “X is like a Y” as an expression of similarity. In Experiment 2 (N = 99; ages 3–6, 13) and Experiment 3 (N = 201; ages 3–5 and adults), participants received metaphors (“Lucy is a parrot”) or similes (“Lucy is like a parrot”) as clues to select one of three images (a parrot, a girl or a parrot-looking girl). An early developmental trend revealed that 3-year-olds started deriving the implicature “X is not a Y,” whereas 5-year-olds performed like adults.