Second Language Acquisition and First Language Phonological Modification

While many second language (L2) acquisition studies analyze the effects that the first language (L1) has on L2 development, less common are studies that examine the converse situation: does acquisition of an L2 impact the L1? This study examines the effects of L2 acquisition on L1 use by looking at the L1 phonological productions of advanced L2 learners vis-à-vis the production of monolingual speakers of the same languages. While most research on L1 phonological modification focuses on speakers who lose their L1 as a result of becoming members of bilingual communities and reside in the L2 community, few studies investigate L2 speakers that remain in their L1 community. This pilot study project begins to fill in the picture of L1 attrition by investigating the modifications of advanced L2 learners of Spanish who remain in their L1 (English) community (the US). It has been documented that L2 speakers are invariably influenced, to some degree, by their L1. However, following Flege’s (1987, 2005) Merger Hypothesis, it is proposed that the merging of phonetic properties of phones that are similar in the L1 and L2 can potentially impact not only the acquired language but the native one as well. In other words, an English speaker with advanced proficiency in Spanish could not only pronounce Spanish with an English characteristics, but will also pronounce English words less “English-like” than a monolingual English speaker would. While this has been shown in French-English bilinguals (i.e., Flege 1987), corroborating evidence from SpanishEnglish bilinguals has been lacking (Flege 2005). This study attempts to fill that gap.