Abstract

Conceptual metaphor is a linguistic mechanism that uses concrete experiences to understand and express abstract concepts. It is considered a universal linguistic phenomenon, observed not only in spoken languages but also in sign languages. However, the situation differs for conceptual metaphors derived from sign languages due to the strong association between metaphor and iconicity (Wilcox, 2000; Taub, 2001). In other words, sign languages are characterized by rich iconicity, meaning that when certain signs are extended metaphorically, they undergo double mappings involving both metaphorical and iconically related transfers. This study investigates the applicability of the double mapping model to Chinese Sign Language (CSL), which has received relatively little attention. To determine whether the double mapping model, which integrates metaphorical and iconic dimensions, is applicable within the linguistic context of CSL, this study examines the metaphorical mapping mechanism of the abstract verbFORGETin CSL as a case study. The results indicate that the sign forFORGETin CSL exhibits a layered structure of metaphorical and iconic elements, demonstrating the validity of the double mapping model for CSL. This dual-layered mapping not only enhances the expressiveness of the sign but also highlights the cognitive interplay between concrete experience and abstract concept. The findings of this study underscore the importance of considering both metaphorical and iconic dimensions when analyzing conceptual metaphors in sign languages. They confirm that the double mapping model provides a robust framework for exploring the intricate connection between metaphor and iconicity.