The effect of linguistic proficiency, age of second language acquisition, and length of exposure to a new cultural environment on bilinguals' divergent thinking

Abstract

The study argues that, in addition to advantages in conscious attention-demanding processing, bilinguals may also exhibit enhanced unconscious divergent thinking. To investigate this issue, the performance of Russian–English bilingual immigrants and English monolingual native speakers was compared on the Abbreviated Torrance Test for Adults, which is a traditional assessment tool of divergent thinking. The study reveals bilinguals' superiority on divergent thinking tasks that require the ability to simultaneously activate and process multiple unrelated concepts from distant categories. Divergent thinking was facilitated by bilinguals' proficiency in two languages, the age of acquisition of these languages and the length of exposure to the new cultural settings that accompanies the acquisition of a new language. A specific architecture of bilingual memory in which two lexicons are mutually linked to the shared conceptual system is theorized to facilitate the functioning of the language mediated concept activation, thereby encouraging bilinguals' divergent thinking performance.