This article shows that first language (L1) transfer may not be effectively maintained in the interlanguage due to confounding factors in the second language (L2). When two factors, "A" and "B," are correlated in the L2, second language learners may only acquire "B," even if "A" is present in the L1.…

A perceptual fading technique was used to teach unilingual adult Canadian francophones to identify the voiceless and voiced linguadental fricatives of English. After just 90 minutes of training, subjects were better able to identify both the training stimuli and an untrained set of natural consonant-vowel exemplars produced by 4 different…