In standard Relevance Theory, hyperbole and metaphor are categorized together as loose uses of language, on a continuum with approximations, category extensions and other cases of loosening/broadening of meaning. Specifically, it is claimed that there are no interesting differences (in either interpretation or processing) between hyperbolic and metaphorical uses (Sperber and Wilson 2008). In recent work, we have set out to provide a more fine-grained articulation of the similarities and differences between hyperbolic and metaphorical uses and their relation to literal uses (Carston & Wearing 2011, forthcoming). We have defended the view that hyperbolic use involves a shift of magnitude along a dimension which is intrinsic to the encoded meaning of the hyperbole vehicle, while metaphor involves a multi-dimensional qualitative shift away from the encoded meaning of the metaphor vehicle. In this paper, we present four experiments designed to test the predictions of this analysis, using a variety of tasks (paraphrase elicitation, self-paced reading and sentence verification). The results of the study support the view that hyperbolic and metaphorical interpretations, despite their commonalities as loose uses of language, are significantly different.
IntroductionWhile metaphor is usually treated as a distinctive, even unique, use of language, hyperbole has generally been categorized, by those few theorists and experimentalists who have considered it, as belonging with irony and meiosis (understatement) (Fogelin, 1988; Clark, 1996 3 paying attention to. 3 In section 2, we briefly examine the claim that metaphor and hyperbole are not genuinely distinct from a descriptive point of view. In section 3, we report our experimental study, which challenges the claim that there are no psycholinguistic differences between the two.We conclude in section 4 by clarifying the resulting positions of metaphor and hyperbole. To anticipate: while a single pragmatic mechanism may account for the understanding of both of these non-literal uses of language, significant descriptive and psycholinguistic differences between them must be respected.
Descriptive differences between hyperbolic and metaphorical usesAs just noted, the intuition that metaphor is a distinctive, even unique, use of language is widespread. In trying to characterize the special nature of metaphor, many theorists have talked of it as involving a mapping across distinct cognitive domains (e.g.