ABSTRACT
Objective To investigate the relationship between the advantage ear (brain hemisphere) of Span-ish-speaking Mexican Chinese learners and category's perception of the Chinese aspirated and unaspirated pho-nemes .Methods Chinese aspirated and unaspirated syllables were used as experimental materials with dichotic lis-tening technology to test the Spanish -speaking Mexican Chinese learners .Results Mexican Chinese learners had studied Chinese 25~30 hours firstly showed percept unaspirated affricates and aspirated stops didn't appear left and right ear advantage .Mexican Chinese learners had studied Chinese 50~60 hours showed that percept aspirated affri-cates appeared right ear advantage(P<0 .05) ,and percept unaspirated affricates appeared left ear advantage (P<0 . 05) .Conclusion The conformation of Mexican Chinese learners’ advantage ear (brain hemisphere) is a continuous process ,relating to Chinese aspirated and unaspirated’s category building .