Recent research shows that speakers with different first languages perceive various cognitive domains in different ways and that bilinguals’ conceptualization patterns are affected by the concepts of both languages. The present study extends Choi and Bowerman (1991) by examining the categorizations of spatial concepts in adult Korean–English bilinguals. Using similarity judgments, the study compares the conceptualization patterns of “put in” and “put on” by Korean–English bilinguals and Korean and English monolinguals. Results indicated significant differences between the monolingual and bilingual groups, demonstrating the process of convergence of the two languages in the bilingual mind. Regression analyses also revealed that bilinguals’ conceptualizations are largely influenced by English proficiency and frequency of Korean use. These findings provide evidence of conceptual restructuring, supporting the claim of previous research that bilinguals’ conceptualization patterns are susceptible to their language experience.
