Language Learning最新文献

The past decades have seen an explosion of research using electrophysiological or neuroimaging techniques for studying the neurocognitive underpinnings of second language (L2) processing. Although this field has a shorter history than does research on language learning more generally, important insights into the neurocognitive basis of L2 processing have driven it to the center stage of language science. In this target article for Language Learning’s 75th Jubilee volume, I illustrate the field's impressive achievements by selectively reviewing electrophysiological and neuroimaging research on L2 processing and bilingual brain organization. I also review changing perspectives in the field (including individual difference and experience-based perspectives, neural network approaches, neuroplasticity, and L2-learning related neural changes) and identified challenges, promises, and future directions (revisit native-speaker benchmark, increase linguistic diversity, enhance ecological validity, intensify research on child L2 learners’ brain, adopt lifelong approach to L2 learning) that can lead to a better understanding of the neural underpinnings of L2 learning and processing.

We tested whether second language (L2) learners rely more on explicit memory during structural priming at lower than at higher proficiency levels (Hartsuiker & Bernolet, 2017). We compared within-L2 priming with lexical overlap in 100 low and 100 high proficiency French L2 speakers under low versus high working memory load conditions induced with a letter series recall task presented between primes and targets. The high load condition would prevent explicit recall of primes during target production. Both groups primed more under low than high load. The effect of load was similar across groups, but exploratory analyses with proficiency as a continuous variable suggested that, with increasing proficiency, participants primed less under high load. We discuss how these findings support the idea that learners exploit explicit memory more during priming in early versus later stages of acquisition. Overall, this study showed that explicit memory influences syntactic processing across the L2 learning trajectory.

This study examined putative benefits of testing and production for learning new languages. Undergraduates (N = 156) were exposed to Turkish spoken dialogues under varying learning conditions (retrieval practice, comprehension, verbal repetition) in a computer-assisted language learning session. Participants completed pre- and posttests of number- and case-marking comprehension, a vocabulary test, and an explicit awareness questionnaire. Controlling for nonverbal ability and pretest scores, the retrieval-practice group performed highest overall. For number/case marking, the comprehension and retrieval-practice groups outperformed the verbal-repetition group, suggesting benefits of either recognition- or recall-based testing. For vocabulary, the verbal-repetition and retrieval-practice groups outperformed the comprehension group, indicating benefits of overt production. Case marking was easier to learn than number marking, suggesting advantages for learning word-final inflections. Explicit awareness correlated with comprehension accuracy, yet some participants demonstrated above-chance comprehension without showing awareness. Findings indicate the value of incorporating both practice tests and overt production in language pedagogy.

We investigated whether sign-naïve learners can infer and learn the meaning of signs after minimal exposure to continuous, naturalistic input in the form of a weather forecast in Swedish Sign Language. Participants were L1-English adults. Two experimental groups watched the forecast once (n = 40) or twice (n = 42); a control group did not (n = 42). Participants were then asked to assign meaning to 22 target signs. We explored predictors of meaning assignment with respect to item occurrence frequency and three facets of visual motivation: iconicity, transparency, and gesture similarity. Meaning assignment was enhanced by exposure and item frequency, thereby providing evidence for implicit language learning in a new modality, even under challenging naturalistic conditions. Accuracy was also contingent upon iconicity and transparency, but not upon gesture similarity. Meaning assignment at first exposure is thus visually motivated, although the overall low accuracy rates and further qualitative analyses suggest that visually motivated meaning assignment is not always successful.