This study investigates L2 comprehension of focus-to-accentuation mapping in English sentences with focus particle only by advanced learners of English whose L1 was either Cantonese or Dutch. Two experiments were conducted to examine (a) whether L2 learners could map accentuation to focus; and (b) whether they could perceive accentuation in English sentences. Results show that accentuation played little role in Cantonese learners’ comprehension of focus, whereas it affected how accurately and quickly Dutch learners and native controls comprehended focus. Dutch learners were even more efficient than native controls in comprehending focus-to-accentuation mapping. Furthermore, both L2 groups could successfully perceive accentuation in English sentences. These findings suggest that multiple interfaces might not be equally problematic for L2 learners with different L1s, and convergence at multiple interfaces in L2 is possible. The comprehension difficulty observed in Cantonese learners can be attributed to their less detailed representation of focus-to-accentuation mapping in L2.

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This “visual-world” eye-tracking study investigated the processing of focus in English sentences with preverbal only by L2 learners whose L1 was either Cantonese or Dutch, compared to native speakers of English. Participants heard only-sentences with prosodic prominence either on the object or on the verb and viewed pictures containing an object-focus alternative and a verb-focus alternative. We found that both L2 groups showed delayed eye movements to the alternative of focus, which was different from the native speakers of English. Moreover, Dutch learners of English were even slower than Cantonese learners of English in directing fixations to the alternative of focus. We interpreted the delayed fixation patterns in both L2 groups as evidence of difficulties in integrating multiple interfaces in real time. Furthermore, the similarity between English and Dutch in the use of prosody to mark focus hindered Dutch learners’ L2 processing of focus, whereas the difference between English and Cantonese in the realization of focus facilitated Cantonese learners’ processing of focus in English.

This corpus-based study demonstrates a case of bidirectional cross-linguistic influence in the acquisition of right-dislocation by Cantonese–English bilingual children and interprets the results in relation to Hulk and Müller’s hypothesis for cross-linguistic influence. Longitudinal data reveal qualitative and quantitative differences between bilingual and monolingual children in the development of right-dislocation in English and Cantonese. While right-dislocation lies at the syntax–pragmatics interface, both delay and acceleration are observed in bilingual development. The article’s findings in general support Hulk and Müller’s hypothesis for cross-linguistic influence in bilingual first language acquisition, but the bidirectional influence observed is not predicted by their formulation of the hypothesis. Moreover, the results suggest that language dominance may influence the directionality of cross-linguistic influence.