Sung-joo Lim Learning Non-Native Speech Categories with a Video Game Abstract: Among various components of language, learning non-native (L2) sounds and contrasts (including speech perception and production) is known to be hard for adults (Flege, 1999; Lively, 1996). Various laboratory studies attempted to promote adult listeners to learn second language speech sounds, however, not much effect of training has been found, even with extensive training. In my study, I apply non-speech category training technique to Native Japanese adults learning non-native English /r/ and /l/ using an unusual approach, a video game. I investigate learning of the fine-grain acoustic details of the English contrast within this paradigm. The results show that a video game paradigm may be an effective way to train non-native speech sounds and indicate that some of the learning mechanisms driving non-speech auditory category learning may also play a role in speech categorization.