A delayed mimicry paradigm was used to assess speakers′ awareness of non-distinctive phonetic differences which in part distinguish languages. The notion of “phonological filtering” implies that second language learners may not be able to perceive phonetic differences between their native language and a foreign language unless the phonetic differences are linguistically relevant in the native language. If cross-language phonetic differences are in fact perceived poorly, it is unlikely that phonetic modification will occur in the course of naturalistic second language acquisition. In this study native English speakers familiar with Spanish-accented English attempted to read sentences with a Spanish accent. Acoustic measurements showed that two phonetic characteristics of English—the long VOT values associated with /p, t, k/ and final-syllable lengthening—were altered in the direction of Spanish and Spanish-accented English. These results provide tentative evidence that non-distinctive phonetic differences between languages are detectable by language learners and thus do not present an insuperable barrier to phonetic learning in second language acquisition.

This article examines the implications of connectionist models of cognition for second language theory. Connectionism offers a challenge to the symbolic models which dominate cognitive science. In connectionist models all knowledge is embodied in a network of simple processing units joined by connections which are strengthened or weakened in response to regularities in input patterns. These models avoid the brittleness of symbolic approaches, and they exhibit rule-like behavior without explicit rules. A connectionist framework is proposed within which hypotheses about second language acquisition can be tested. Inputs and outputs are patterns of activation on units representing both form and meaning. Learning consists of the unsupervised association of pattern elements with one another. A network is first trained on a set of first language patterns and then exposed to a set of second language patterns with the same meanings. Several simulations of constituent-order transfer within this framework are discussed.

The role of explicit information (EI) as an independent variable in instructed SLA is largely underresearched. Using the framework of processing instruction, however, a series of offline studies has found no effect for EI (e.g., Benati, 2004; Sanz & Morgan-Short, 2004; VanPatten & Oikkenon, 1996). Fernández (2008) presented two online experiments with mixed results. She found an effect for EI with processing instruction on one target structure (subjunctive in Spanish) but not the other structures (object pronouns and word order in Spanish). Thus, the effects of EI could be related to the target structure or to a processing problem, or both. The present study is a conceptual replication of one of Fernández’s experiments. The target was German accusative case markings on articles with both subject (S)- verb (V)- object (O) and OVS word orders. As shown by Jackson (2007) and LoCoco (1987), learners of German as a second language misinterpret OVS sentences as SVO, ignoring case markings as a cue of who does what to whom. Thus, the goal of the instructional intervention was to push learners to process case markings and word order correctly. The treatment consisted of structured input items (Farley, 2005; Lee & VanPatten, 2003) under two conditions: +/−EI. Following Fernández, the treatment was conducted via computer using e-Prime, and learners’ responses were recorded as they made their way through the items. Whereas Fernández did not find an effect for EI for word order and object pronouns in Spanish, we found an effect for word order and case markings in German: (a) Twice as many learners in the +EI group reached criterion (began to process input strings correctly) compared with the −EI group, and (b) learners in the +EI group began processing word order and case markings sooner than in the −EI group. Even though the processing problem was the same in both Fernández’s and our experiments, we attribute the difference in results to the interaction of particular structures with the processing problem and call for additional research on the role of EI not just in processing instruction but in all formal interventions.

This study explores the differential effects of captions and subtitles on extensive TV viewing comprehension by adolescent beginner foreign language learners, and how their comprehension is affected by factors related to the learner, preteaching of target vocabulary, the lexical coverage of the episodes, and the testing instruments. Four classes of secondary school students took part in an 8-month intervention viewing 24 episodes of a TV series, two classes with captions, and two with subtitles. One class in each language condition received explicit instruction on target vocabulary. Comprehension was assessed through multiple-choice and true-false items, which included a combination of textually explicit and inferential items. Results showed a significant advantage of subtitles over captions for content comprehension, and prior vocabulary knowledge emerged as a significant predictor—particularly in the captions condition. Comprehension scores were also mediated by test-related factors, with true-false items receiving overall more correct responses while textually explicit and inferential items scores differed according to language of the on-screen text. Lexical coverage also emerged as a significant predictor of comprehension.

Although fluency is an important subconstruct of language proficiency, it has not received as much attention in L2 writing research as complexity and accuracy have, in part due to the lack of methodological approaches for the analysis of large datasets of writing-process data. This article presents a method of time-aligned keystroke logging and eye-tracking and reports an empirical study investigating L2 writing fluency through this method. Twenty-four undergraduate students at a private university in Turkey performed two writing tasks delivered through a web text editor with embedded keystroke logging and eye-tracking capabilities. Linear mixed-effects models were fit to predict indices of pausing and reading behaviors based on language status (L1 vs. L2) and linguistic context factors. Findings revealed differences between pausing and eye-fixation behavior in L1 and L2 writing processes. The article concludes by discussing the affordances of the proposed method from the theoretical and practical standpoints.

This study reports on the impact of 11 West European first languages on the acquisition of Dutch. Using data from nearly 6,000 second-language learners, it was found that the mother tongue had a rather large impact on two language skills—namely, oral and written proficiency—as measured by the scores received by these learners on the State Examination of Dutch as a Second Language. Multilevel analyses showed that the effect of the mother tongue can adequately be modeled by means of the cognate linguistic distance measure, adopted from McMahon and McMahon (2005). The explanative power of the genetic linguistic distance measure (Cavalli-Sforza, Menozzi, & Piazza, 1994), on the other hand, was rather poor. Additionally, learner characteristics (age of arrival, length of residence, hours studying Dutch, education, and gender) and context characteristics (quality of schooling in the country of origin and multilingual country of origin) explained part of the variation in Dutch speaking and writing skills.

Ninety-six second language learners of English responded to a 30-item multiple-choice questionnaire requiring them to identify the antecedent of a reflexive pronoun. Their judgments differ from those of a native-speaker control group in that they do not require that a reflexive take a clause mate antecedent, but both groups share a preference for subject over non-subject antecedents. The second language learners do not seem to transfer first language (L1) grammar into the second language (L2), nor do they recapitulate the course of L1 acquisition. An extension of Wexler and Manzini's (1987) parameter-setting model of L1 acquisition to L2 data may account for some of these results, but the high incidence of long-distance binding of reflexives remains problematic: these second language learners have set the governing category parameter too widely without positive evidence.

This study extends the evidence for implicit second language (L2) learning, which comes largely from (semi-)artificial language research, to German. Upper-intermediate L2 German learners were flooded with spoken exemplars of a difficult morphological structure, namely strong, vowel-changing verbs. Toward the end of exposure, the mandatory vowel change was omitted, yielding ungrammatical verb forms (compare Leung & Williams, 2012). Two pre- and posttests—word monitoring and controlled oral production—gauged the development of learners’ implicit and explicit knowledge, respectively.

Interviews revealed 33 out of 38 L2 learners remained unaware of the ungrammatical verbs in the input flood; however, they showed significant sensitivity during listening as evidenced by a reaction time slowdown on ungrammatical trials. The unaware learners also improved significantly from pretest to posttest on the word-monitoring task, but not the oral production measure, unless the verbs’ salience in the input flood had resonated with them. Thus, implicit instruction affected implicit knowledge primarily, although prior knowledge and memory could potentially account for interactions between implicit processing, implicit knowledge, and explicit knowledge.

Much work in the field of second language acquisition (SLA) has focused on the linguistic adjustments made by native speakers (NSs) when speaking to non-native speakers (NNSs) of that language. Modifications of speech to NNSs are usually assumed to be an attempt to make the target language more comprehensible. The study of second language teachers' classroom discourse has contributed to a thorough description of such modifications, which in general may be termed foreigner talk (FT).

This article presents two experiments that examine the effects of the native language (L1) on the second language (L2) acquisition of argument structure. The linguistic focus is on agentive verbs of directed motion (march, walk) and change-of-state verbs (break, melt) in Spanish and English. Agentive verbs of directed motion undergo a transitivity alternation in English when there is a prepositional phrase (The captain marched the soldiers to the tents) but not in Spanish (*El capitán marchó a los soldados hasta el campamento). Two experiments are reported that examine whether Spanish and Turkish learners of English at the intermediate level undergeneralize the transitivity alternation with manner-of-motion verbs, and whether English learners of Spanish overgeneralize the alternation. In both experiments subjects performed a picture judgment task and a grammaticality judgment task. Results confirmed that the L1 constrains the acquisition of argument structure: There were overgeneralization errors with manner-of-motion verbs in the Spanish study and there were undergeneralization errors with these verbs in the English study. Learnability implications are discussed.

After an introductory discussion of the concepts of vocabulary knowledge continua and foreign-language learners' mental lexicons, the paper presents the results of a longitudinal pilot study whose aim was to make preliminary insights into vocabulary development as it takes place in an ordinary foreign-language classroom setting involving elementary-level Swedish-speaking learners of English. The results are discussed in terms of vocabulary growth in general, the learners' accessibility to words under time pressure, the relationship between “old,” well-known words and newly learned words, and finally, the stability of the learners' immediate access to words.

This study investigates the manner in which syntax, prosody, and context interact when second- and fourth-semester college-level English-French learners process relative clause (RC) attachment to either the first noun phrase (NP1) or the second noun phrase (NP2) in complex nominal expressions such as le secrétaire du psychologue qui se promène (au centre ville) “the secretary of the psychologist who takes a walk (downtown).” Learners' interpretations were affected by the length of the RC, specifically its phonological weight. Effects of intonation contour were found only in a subset of learners. In a response time (RT) experiment that manipulated contexts, fourth-semester learners showed a final bias for NP1 attachment in interpretation but an initial RT bias for NP2 attachment. Second-semester learners also produced a NP2 attachment bias in RTs, but no asymmetry in interpretation was found. We argue that the processing of RC attachment by English-French learners requires a task-specific algorithm that implicates autonomous syntactic and prosodic computations and specific interactions among them.

Using advanced quantitative methods, this article demonstrates that cumulative exposure to the school language is the best language experience predictor of proficiency in that language (as indexed by sentence repetition, lexical semantic, and discourse semantic tasks) in a highly diverse group of 5- to 7-year-old bilingual children in monolingual education. An objective method is proposed to identify the amount of school language experience beyond which bilingual children are likely to perform within the monolingual range, and show that relative passivity in the home language does not translate into better school language proficiency. Socioeconomic status is shown to interact in complex ways with language exposure, such that it is only above a certain level of exposure to the school language that the benefits of a more privileged background have a tangible impact on school language proficiency. To tease apart the effect of environmental predictors from the effect of cognitive factors, memory and cognitive flexibility measures are included as covariates in all analyses.

In an empirical investigation, the results of which are reported elsewhere in greater detail (Wolff, 1985), an attempt was made to discover more about the strategies and processes specific to second language (L2) comprehension. On the assumption that information processing is of a universal cognitive nature, no differences in the cognitive processes themselves involved in first language (L1) and L2 comprehension were expected. It was, however, expected that differences would emerge in the way common strategies and processes were applied in the decoding of texts and utterances. We assumed that the differences would be of degree and not of kind, and that the extent and exploitation of these processes in L2 comprehension could be distinguished from L1 comprehension. The experimental design closely followed that developed by L1 comprehension research. A text was presented to an informant followed by the instruction to recall it. We adopted this type of experiment for two reasons: (a) It has proved its reliability in L1 research, and (b) our results could be compared to those obtained in L1 research. The similarities and differences between L1 and L2 results were thus quite easy to analyze.

This paper reports the results of a study which investigated (a) the separate effects that differences in learners' contact can have on various aspects of proficiency, and (b) the combined effects that differences in informal contact and instructional variation can have on improvement in proficiency. Forty-eight adult learners from three intermediate-level ESL classes participated in the study.

To measure differences in learners' informal contact, a language contact questionnaire was administered. The results revealed both quantitative and qualitative differences in learners' out-of-class contact with the second language. When these differences were examined in relation to learners' performance on seven proficiency measures, correlational analysis revealed that while learners' performance on some measures was related to differences in amount of contact, it was related on other measures to differences in type of contact.

To determine whether differences in contact interacted with instructional variation to produce differences in improvement in proficiency, learners' pre-and post-test scores were examined in relation to contact and class in an analysis of co-variance. The results indicated that learners' informal contact interacted with differences in instruction to produce variation in improvement on two proficiency measures.

The findings are discussed in relation to the need for more class-room-centered research to investigate both the separate and combined effects of learner and instructional variables on second language proficiency.

Learnability theory is an investigation of the cognitive principles that determine developmental stages and eventual success in language acquistion. The focus of this study is on the learning principles within learnability theory that account for developmental stages in adult second language acquisition. Three learning principles, cumulative development, continuity, and conservatism, predict a complex sequence of development in the acquisition of relative clauses and wh-questions in English. They predict an early no-prep stage, gradual development through two additional stages of greater embeddedness of the extracted noun, stranded before nonstranded prepositional structures, and the likelihood of resumption at early stages. These predictions are confirmed by data from previous studies and are further investigated in this study by means of elicited production data collected from 35 Japanese learners of English and 17 native speakers of English. The data show the expected stages of development and confirm the relevance of learning principles to a comprehensive theory of learnability in second language acquisition (SLA).

In English, manner-of-motion verbs (walk, run) and directed motion verbs (go) can appear with a prepositional phrase that expresses a goal (goal PP) as in John walked (ran, went) to school. In contrast, Japanese allows only directed motion verbs to occur with a goal PP. Thus, English allows a wider range of motion verbs to occur with goal PPs than Japanese does. Learnability considerations, then, lead me to hypothesize that Japanese learners will learn manner-of-motion verbs with goal PPs in English from positive evidence, whereas English learners will have difficulty learning that manner-of-motion verbs with goal PPs are impossible in Japanese because nothing in the input will tell them so. Forty-two intermediate Japanese learners of English and 21 advanced English learners of Japanese were tested using a grammaticality judgment task with pictures. Results support this prediction and provide a new piece of evidence for the previous findings indicating that L1 influence persists when an argument structure in the L2 constitutes a subset of its counterpart in the L1.

It has been known since at least the 1960s that small changes in pupil diameter in response to a mental task are indicative of processing effort associated with this task. More recently, with the advent of modern eye-trackers, which also measure the pupil diameter, pupillometry has been “rediscovered” by language researchers and the method has since been used in many different subdisciplines of linguistics. This article gives a nonexhaustive overview about recent linguistic research with the purpose of introducing researchers in the field of second language acquisition (SLA) to pupillometry. In addition, the article discusses things to consider when designing an experiment and how pupil data can be analyzed. The range of possibilities in which pupillometry can be used in experimental SLA research makes it a welcome addition to other online methods such as eye-tracking and event-related potentials.