This study examines whether Japanese native (L1) listeners can implicitly learn stress pattern regularities, not present in their L1, after a brief auditory exposure. In the exposure phase, the participants listened to and repeated words bearing stress patterned after Latin, but with a highly restricted consonant inventory. They performed a judgment task designed to test whether they had learned the relevant stress pattern regularities from the brief listening experience. We assessed participants’ awareness of the inherent stress regularities by analyzing confidence in making decisions and by verbal report. Results suggest that although participants remained unaware of the underlying stress regularities they performed significantly above chance in endorsing correctly stressed novel items even when they claimed to be guessing. In addition, there was no difference in confidence between correct and incorrect judgments. These results suggest that brief exposure resulted in implicit knowledge of abstract stress assignment rules. However, participants rejected correctly stressed words that contained consonants that were not present in the test phase. On the basis of this finding, we speculate that in the acquisition of second language phonology, a violation at the segmental level may be deemed more costly than a violation in the prosodic domain.

This study examines heritage speakers’ knowledge of Standard Arabic (SA) and compares their patterns of SA acquisition to those of learners of SA as second/foreign language (L2). In addition, the study examines the influence of previously acquired language varieties, including Colloquial Arabic (QA), on SA acquisition.1 To this end, the study compares 35 heritage speakers, 28 L2 learners, and 16 controls with respect to sentential negation, an area where SA and QA diverge significantly. The participants completed five oral tasks targeting negation of eight different clause types. The findings showed that L2 learners and heritage speakers performed comparably, encountered similar difficulties, and produced similar patterns of errors. However, whereas L2 learners did not display clear transfer effects from L1 (English), heritage speakers showed both positive and negative influence of L1 (QA). The results shed light on the dynamics of the interaction between the spoken heritage languages and their written standard counterparts with specific focus on diglossic contexts.

This study systematically examines the moderating effects of task type and L2 proficiency on the relationship between L1 and L2 simultaneously across reading and writing tasks with different levels of cognitive complexity. Main and moderating effects were evaluated through structural equation modeling analyses. First, both L1 skills and L2 proficiency were significant independent predictors of L2 reading and writing performance across tasks with different levels of cognitive complexity. Second, L2 proficiency had a much greater effect on L2 reading and writing performance across tasks with different cognitive loads than L1 skills. Third, the strength of the relationship between less cognitively demanding L1 and L2 reading tasks showed no significant difference between the low- and high-L2-proficiency groups. Fourth, the strength of the relationship between more cognitively demanding L1 and L2 reading tasks showed a significant difference between the low- and high-L2-proficiency groups. Fifth, the strength of the relationship between L1 and L2 writing tasks with different levels of cognitive complexity varied significantly depending on the level of L2 proficiency. These results are discussed theoretically and pedagogically.

This paper presents an experimental study of the rarely explored question of how input through instruction interacts with L2 acquisition at the level of modular linguistic knowledge. The investigation focuses on L2 knowledge of the English polarity item any, whose properties are only partially covered by typical language-teaching materials. We investigate Najdi-Saudi Arabic-speaking learners’ knowledge of the distribution of any in contexts that are taught, contexts that are not taught but may be observable in the input, and contexts that are neither taught nor observable. We further test whether conscious awareness of instructed rules about any correlates with performance. Our findings suggest a role for instruction and for internal, UG-constrained acquisition, and that these two paths interact. We explore our findings in terms of Sharwood Smith and Truscott’s (2014a, 2014b) framework of modular online growth and use of language, in which cognitive development is driven by processing.

The literature exploring the executive function correlates of bilingualism is vast, but to date, few studies have concentrated on children, for whom the bilingual advantage appears even more inconsistent than for adults. We investigate a highly heterogeneous group of children (in terms of bilingual experience and socioeconomic status) and identify the critical threshold of bilingual experience from which an advantage can be observed at group level. The modeling methods adopted allow the use of fine-grained, continuous factors for age and socioeconomic status, thereby effectively controlling for their effect and isolating the specific effect of bilingual experience. We pioneer the use of Cox Proportional Hazard regression to analyze performance in the Simon task. This allows the modeling of all data points without transformation or outlier removal, and captures both accuracy and reaction time within the same analysis, while being able to handle multiple predictor variables.

Artificial linguistic systems (ALSs) offer many potential benefits for second language acquisition (SLA) research. Nonetheless, their use in experiments with posttest-only designs can give rise to internal validity problems depending on the baseline that is employed to establish evidence of learning. Researchers in this area often compare experimental groups’ performance against (a) statistical chance, (b) untrained control groups’ performance, and/or (c) trained control groups’ performance. However, each of these methods can involve unwarranted tacit assumptions, limitations, and challenges from a variety of sources (e.g., preexisting perceptual biases, participants’ fabrication of rules, knowledge gained during the test), any of which might produce systematic response patterns that overlap with the linguistic target even in the absence of learning during training. After illustrating these challenges, we offer some brief recommendations regarding how triangulation and more sophisticated statistical approaches may help researchers to draw more appropriate conclusions going forward.

This article investigates how lexical and syntactic differences in L1 and L2 grammatical gender affect L2 predictive gender processing. In a visual-world eye-tracking experiment, 24 L1 Russian adult learners and 15 native speakers of German were tested. Both Russian and German have three gender classes. Yet, they differ in lexical congruency, that is, whether a noun (“house”) is assigned to the same or a different gender class. Further, gender is syntactically realized on postnominal suffixes in Russian but on prenominal articles in German. For adjectives, both Russian and German mark gender on suffixes. In predictive gender processing, we find interactions of proficiency and congruency for gender-marked articles. Advanced L2 learners show nativelike gender prediction throughout. High-intermediate learners display asymmetries according to syntactic and lexical congruency. Predictive gender processing obtains for all nouns in the (syntactically congruent) adjective condition, yet only for lexically congruent nouns in the (syntactically incongruent) article condition.

This exploratory study aimed to examine whether early exposure to Chinese as a heritage language (CHL) provides facilitation in word-knowledge development in collegiate CHL learners by comparing word-level subskills, including oral vocabulary knowledge, print vocabulary knowledge, morphological awareness, and lexical inferencing ability, between CHL learners and non-CHL learners. Sixty-two collegiate intermediate-level Chinese learners including 37 CHL learners and 25 non-CHL learners participated in this study. Drawing on multivariate analyses, the study found that CHL learners outperformed non-CHL learners on oral vocabulary knowledge, morphological awareness, and lexical inferencing ability, but not on print vocabulary knowledge. In both groups of learners, print vocabulary knowledge was the strongest predictor of lexical inferencing ability. While oral vocabulary knowledge and print vocabulary knowledge were highly correlated in non-CHL learners, they were more distinct constructs in CHL learners. These findings seem to suggest that early exposure to spoken Chinese enhances the development of oral vocabulary knowledge and morphological awareness in CHL learners. Importantly, the latter appears to enhance the formation of the connection between oral vocabulary knowledge and print knowledge.

Response time variability and its changes over time have been interpreted as indicative of levels of knowledge automatization. Predominantly, only declines in variability have been examined over the course of practice and growing second language proficiency. We discuss possible scenarios that may involve increasing, rather than declining variability, such as the establishment of new memory representations. We present repeated-measures lexical decision data on novel words encountered incidentally in a lexical decision task, which show increased variability as familiarity increases. Similar patterns were observed in our reanalyses of data from other novel word learning experiments with task demands different from ours: auditory presentation and a posttest after seven days (Brown & Gaskell, 2014), as well as picture-matching and production tests (Bartolotti & Marian, 2014). Jointly, these results suggest that when no prior representation of a word exists, increased variability may index learning during its initial stages.