L2 processing of filler-gap dependencies: Attenuated effects of naturalistic L2 exposure in a multilingual setting

In the online processing of long-distance wh-dependencies, native speakers have been found to make use of intermediate syntactic gaps, which has the effect of facilitating dependency resolution. This strategy has also been observed in second language (L2) speakers living in an L2 immersion context, but not in classroom L2 learners. This research note investigates whether there is evidence of use of the intermediate gap among L2 speakers that have received considerable naturalistic exposure to the L2 from a young age, but do not live in a standard immersion context. Two groups of participants, one L1 English and one L1 Afrikaans–L2 English, completed a self-paced reading task involving English sentences containing long-distance wh-dependencies. The data were analysed using Bayesian regression. The results indicate that the intermediate gap facilitated dependency resolution in the L1 English group but not in the L2 group. Increased L2 exposure seemed to increase sensitivity to the intermediate gap among the L2 speakers, but was not associated with faster dependency resolution. The findings suggest that although non-immersive L2 experience affects L2 processing of abstract grammatical cues, it may be less effective than fully immersive experience in engendering nativelike processing of long-distance wh-dependencies.