In this dissertation, I investigated how cognitive resources as well as formal, and informal language experience impact language learning in two studies. In the first study (Chapter 2), I examined the learning of Spanish grammatical gender by Chinese international students who were studying abroad in the US. The goal of that study was to uncover…

Vietnamese (Vietic, Mon-Khmer, Austroasiatic) is monosyllabic and tonal. Most Mon-Khmer (MK) languages are multisyllabic and atonal. Evidence suggests that Vietnamese (VN) has had its tones less than one millennium, and that other languages (both MK and non-MK) are also acquiring tones, a process called "tonogenesis". Comparing VN's…