This study investigated three key issues in heritage language (HL) research. Previous research shows HL speakers have an advantage on oral production tasks compared to L2 speakers who instead perform better on written tasks. Furthermore, both L2 and HL speakers are claimed to have a "yes-bias" towards retaining ungrammaticality in GJTs.…

Conversely to plenty of studies describing how L1 transfer affects L2 systems, where the two grammars, L1/L2, often only come to interact later in life, less is known of dominant language transfer in heritage language grammars. Unlike in L2 speakers, the dominant language of the heritage speaker potentially affects its weaker language already from…

First language (L1) attrition in adulthood offers new insight on neuroplasticity and the role of language experience in shaping neurocognitive responses to language. Attriters are multilinguals for whom advancing L2 proficiency comes at the cost of the L1, as they experience a shift in exposure and dominance (e.g., due to immigration). To date,…

This study addresses the question of whether language dominance and cross-linguistic influence are related by investigating the acquisition of determiner omission in four bilingual German-Italian children. The study begins by showing that monolingual Italian learners omit determiners less extensively than monolingual German learners. If bilingual…

A discussion of bilingualism and second language learning distinguishes three types of bilingualism, namely, compound, coordinate, and sub-coordinate. A compound bilingual is an individual who learns two languages in the same environment so that he/she acquires one notion with two verbal expressions. A coordinate bilingual acquires the two…