L2 Processing Research Articles

The Predictive Processing of Number Information in L1 and L2 Arabic Speakers

Prior research has shown that people can predict the syntactic features of an upcoming word during sentence comprehension. However, evidence for morphosyntactic predictive processing has been limited to gender or case marking in a small subset of Indo-European languages. In the current study, we implemented the eye-tracking visual world paradigm to investigate whether L1 (n = 18) and L2 (n = 40) Arabic speakers could extract number information from singular-marked verbs to anticipate the next noun. In a between-subject design, L1 and L2 speakers heard the singular verb in the simple past form (Exp 1) and the progressive past form (Exp 2). The effect of L2 proficiency (measured using a C-test and a receptive vocabulary test) on number prediction was also examined. L1 Arabic speakers showed earlier and stronger number prediction effects regardless of verb aspect. In contrast, L2 speakers exhibited delayed (Exp 1) or limited (Exp 2) prediction, suggesting a mediating role for verb aspect. Increased L2 proficiency did not influence anticipatory eye-movements during the verb region, and only emerged as significant during the noun region. These results confirm and extend earlier research on L1 and L2 number predictive processing.

Sensitivity to Filler–Gap Dependency Violations in the L1 vs. L2: Evidence from Speeded Judgement Tasks

We carried out four timed judgement experiments investigating whether bilingual speakers differ in their sensitivity to different kinds of filler–gap dependency violation in L1 German and L2 English. Using a within-subjects design and parallel experimental designs for both languages, we manipulated either the availability of a gap (“filled-gap paradigm”) or the semantic congruency between the filler and its licensing verb. We examined whether participants exhibited consistent judgement patterns for syntactic (i.e., filled wh-gaps) and semantic (i.e., implausible wh-fillers) violations within and across their languages. Our results showed that participants’ sensitivity to filled gaps correlated positively with their sensitivity to a filler’s semantic fit in their L1 but not in their L2, and that participants’ sensitivity to semantic fit was positively correlated in their two languages whilst their sensitivity to gap availability was not. Further analyses of the L2 data showed that participants’ sensitivity to semantic fit but not to filled gaps increased with L2 proficiency. Our findings are in line with earlier findings indicating reduced sensitivity to structural gaps even at advanced L2 proficiency levels. They also highlight the need for L2 processing research to look beyond group-level performance and consider bilinguals’ sensitivity to different types of linguistic constraints at the individual level.

Minding the gap: Similarity-based interference in L1 and L2 processing of long-distance Wh-dependencies

Minding the gap: Similarity-based interference in L1 and L2 processing of long-distance Wh-dependencies

Structural changes of muscle spindles in the multifidus muscle after intervertebral disk injury are resolved by targeted muscle activation.

Fibrosis of muscle spindles (sensory organs) in back muscles induced by intervertebral disc (IVD) degeneration could limit transmission of muscle stretch to the sensory receptor and explain the proprioceptive deficits common in back pain. Exercise reduces back muscles fibrosis. This study investigated whether targeted muscle activation via neurostimulation reverses or resolves muscle spindle fibrosis in a model of IVD injury. In eighteen sheep, lumbar (L)1-2 and L3-4 IVD degeneration was induced by partial thickness anulus fibrosis incision and a neurostimulator was implanted. After IVD-degeneration developed for 3 months, neurostimulation of the L2 nerve root activated multifidus in nine randomly selected animals. Multifidus muscle adjacent to the spinous process of L2 (non-stimulated) and L4 (stimulated) was harvested 3 months after activation. Muscle spindles were identified in Van Giessen's-stained sections. Connective tissue spindle capsule thickness, and cross-sectional area (CSA) of the spindle, its periaxial fluid and sensory elements were measured. Immunofluorescence assays evaluated Collagen-I and -III. Multifidus muscle spindle capsule thickness and Collagen-1 were significantly less in the neurostimulation animals than IVD-injury animals at L4 (stimulated muscle) (P < 0.05), but not L2 (non-stimulated muscle). Spindle capsule thickness was less in lateral than medial regions. CSA of the muscle spindle and sensory elements was less in neurostimulated animals at L4. Targeted multifidus activation reverses or prevents accumulation of connective tissue of the multifidus muscle spindle capsule caused by IVD injury. Reduced fibrosis should maintain sensory function of this important muscle mechanoreceptor and might provide an effective solution to resolve the commonly identified proprioceptive deficits in back pain and maintain healthy spine function.

Concurrent validity of skin-based motion capture systems in measuring dynamic lumbar intervertebral angles.

Spine kinematics are commonly measured by external sensors such as motion capture and accelerometers. However, these skin-based measures cannot directly capture intervertebral motion of the lumbar spine. To date, research in this area has focused on the estimation of intervertebral kinematics using static trials but no study has analyzed agreement throughout the dynamic range of motion. This study investigated the agreement between skin-based sensors (accelerometers and motion capture) and quantitative fluoroscopy (QF) in measuring lumbar spine kinematics for the duration of complete flexion and extension motion in a healthy female population. Twenty female participants (age 30-57, BMI<30) were guided through a standing flexion and extension bending protocol while spine kinematics were concurrently measured by QF (L2, L3, L4, L5, and S1) and motion capture sensors and accelerometers positioned over the spinous processes of L2, L4, and S1. Intervertebral angles (L2-L4, L4-S1, L2-S1) and individual vertebrae levels were compared between measures. Non-parametric limits of agreement between QF and skin-based markers were greatest at the end-range of motion for both flexion and extension, but differences increased variably between participants, sometimes over-and sometimes underestimating angles, thus, disproving the common assumption that it increases linearly. The two skin-based marker systems showed good agreement with one another showing that they can be used interchangeably but they can only be used to estimate lumbar spine kinematics. Normalizing angles to a change in angle and considering the posture of instrumentation would be beneficial to reduce potential sources of errors.

How Do Trainee Translators Mobilise Internal and External Support in L1 and L2 Translation Processes?

When solving translation problems, translators rely on internal and external sources of support, which is associated with the level of their translation competence and information literacy skills. This quantitative and qualitative multiple case study explores the types of support used by undergraduate translation students with stronger and weaker language skills before and after their first 7.5 months of translator education. The article examines the extent and success of use of internal and external resources in solving problems during L1 and L2 translation, as well as illustrating their diverse activation in sample translation processes. An analysis of data concerning the translation process and product for 315 problem-solving paths showed, among others, the importance of the activation of internal resources in addition to the use of external ones in providing high-quality translations, greater reliance on internal resources in L1 translation, greater success in relying on external resources to solve translation problems, and the complexity of the interplay between internal and external resources. Pedagogical implications are formulated with regard to promoting the optimal use of both types of resources, with a particular focus on process-oriented pedagogy.

Exploring nonlocal subject–verb agreement in L2 English: The role of proficiency and language experience

ABSTRACT This study explores the effects of second language (L2) proficiency and the extent of exposure to the L2 on how L2 learners process nonlocal subject–verb agreement in English. A group of 61 adult Tagalog–English bilinguals, who began learning English before the age of 11, and a control group of 23 native speakers of English completed acceptability judgment and self-paced reading tasks. In the acceptability judgment task, both groups exhibited sensitivity to agreement violations, indicating their knowledge of subject–verb agreement in English. In the self-paced reading task, the L2 group exhibited delayed sensitivity to agreement violations compared to native speakers. Notably, the processing patterns of L2 learners were significantly influenced by their L2 proficiency in English. In contrast, the effect of language exposure was not significant. These results indicate that the ability of L2 speakers to compute nonlocal agreement in English is predominantly shaped by their proficiency. These findings suggest that while both L1 and L2 processing rely on fundamentally similar underlying mechanisms, L2 parsing appears to be more closely tied to language proficiency.

Cross-language orthographic neighborhood density effects in Dutch–English and Spanish–English bilinguals

Processing a word in a second language (L2) may be hindered or helped by the simultaneous activation of similar words present in L2 and in addition by similar words that occur in the first language (L1). Precise mechanisms for influencing variables within L2 and cross-language processing are still little understood. The current visual word recognition study explored orthographic neighborhood density (ND) effects in L2 English, replicating the effects for Dutch–English while expanding the exploration to a new language combination, Spanish–English. The within- and across-language effects were explored in a group of Dutch–English and Spanish–English bilinguals. English L2 targets were subdivided into four ND conditions: high L1 + high L2, high L1 + low L2, low L1 + high L2, and low L1 + low L2. For Experiment 1, an analysis of generalized linear mixed-effects models (GLMMs) revealed that Dutch (L1)–English (L2) bilinguals showed a facilitatory main effect of English ND on reaction times and error rates. However, an inhibitory main effect of L1 Dutch ND on L2 visual word recognition was only observed for reaction times, not error rates. Overall, no interaction was detected between L1 and L2 NDs for reaction times or error rates. Additionally, a factorial permutation test confirmed the L2 facilitatory effect on both reaction times and error rates, while it supported an L1 inhibitory effect for error rates only. In Experiment 2, a GLMM analysis replicated the L2 facilitatory effect on reaction times in Spanish (L1)–English (L2) bilinguals but did not reveal an inhibitory main effect of L1 on L2 word recognition. Instead, we found a significant interaction between English (L2) and Spanish (L1) ND. Reaction time patterns were confirmed by the non-parametric analysis, although with only a marginally significant interaction. For error rates, no effect for ND was detected using GLMMs. However, the permutation test revealed significant L2 facilitatory and L1 inhibitory effects on L2 word recognition but no significant interaction. Our data confirm a robust L2 facilitatory main effect of ND on reaction times across experiments and analyses, while L1 inhibitory main and interaction effects were less robust across experiments and analyses. The latter may be dependent on language specificity and speaker characteristics.

Do L2 learners show attachment preferences? The processing of participial relative clauses in L2 Russian by English–Russian bilinguals

Aims and objectives: This study investigated whether first language (L1) English and second language (L2) Russian bilinguals are sensitive to structural information during L2 processing by testing their attachment preference when reading participial relative clauses with three preceding noun phrases in Russian. Methodology: The participants read sentences containing a participial relative clause preceded by three noun phrases connected by genitive marking and responded to comprehension questions by indicating which noun phrase the participial relative clause modified or that the sentence was ungrammatical. Their reading times and post-reading responses were recorded. Data and analysis: The reading times were log-transformed and fitted to a generalized linear mixed-effects model. Ungrammaticality judgment rates and noun phrase selection accuracy rates were fitted to generalized linear mixed-effects models using a binary logistic distribution. Findings: Reading times and ungrammaticality judgment rates showed that the participants preferred to attach the participial relative clause to the first and the third noun phrases. The second noun phrase was least preferred. These results contrast findings in previous studies, which have shown no attachment preference for L2 learners. We argue that the participants were sensitive to structural information, in that they were constrained by the recency preference and the predicate proximity effects, similar to native speakers. Originality: To the best of our knowledge, this is the first study that tested L2 learners with relative clauses preceded by three noun phrases and showed that L2 learners are also constrained by the recency preference and predicate proximity effects. Significance/Implications: We argue that our findings deviate from the null attachment preference found in previous studies, which has been used as evidence that L2 processing is fundamentally different from L1 processing. Our findings suggest that L2 learners were influenced by predicate proximity, similar to native Russian speakers, and were also mildly influenced by recency preference, which could be from this L1.

How lexical frequency, language dominance and noise affect listening effort – insights from pupillometry

ABSTRACT Acoustic, listener, and stimulus-related factors modulate speech-in-noise processes. This study examined how noise, listening experience, manipulated at two levels, native [L1] vs. second language [L2], and lexical frequency impact listening effort. Forty-seven participants, tested in their L1 Hebrew and L2 English, completed a word recognition test in quiet and noisy conditions while pupil size was recorded to assess listening effort. Results showed that listening in L2 was overall more effortful than in L1, with frequency effects modulated by language and noise. In L1, pupil responses to high and low frequency words were similar in both conditions. In L2, low frequency words elicited a larger pupil response, indicating greater effort, but this effect vanished in noise. A time-course analysis of the pupil response suggests that L1–L2 processing differences occur during lexical selection, indicating that L2 listeners may struggle to match acoustic-phonetic signals to long-term memory representations.

Differential neural representations of syntactic and semantic information across languages in Chinese-English bilinguals

Bilingual individuals manage multiple languages that align in conceptual meaning but differ in forms and structures. While prior research has established foundational insights into the neural mechanisms in bilingual processing, the extent to which the first (L1) and second language (L2) systems overlap or diverge across different linguistic components remains unclear. This study probed the neural underpinnings of syntactic and semantic processing for L1 and L2 in Chinese-English bilinguals (N = 44) who performed sentence comprehension tasks and an N-back working memory task during functional MRI scanning. We observed that the increased activation for L2 processing was within the verbal working memory network, suggesting a greater cognitive demand for processing L2. Crucially, we looked for brain regions showing adaptation to the repetition of semantic information and syntactic structure, and found more robust adaptation effects in L1 in the middle and superior temporal cortical areas. The differential adaptation effects between L1 and L2 were more pronounced for the semantic condition. Multivariate pattern analysis further revealed distinct neural sensitivities to syntactic and semantic representations between L1 and L2 across frontotemporal language regions. Our findings suggest that while L1 and L2 engage similar neural systems, finer representation analyses uncover distinct neural patterns for both semantic and syntactic aspects in the two languages. This study advances our understanding of neural representations involved in different language components in bilingual individuals.

Abstract 123: Microcatheter Guided Blood Patch for Treatment of Cervical Cerebrospinal Fluid Leak

Introduction Epidural blood patch (EBP) remains the therapy of choice in treating refractory headaches due to low cerebrospinal fluid (CSF) pressure. If a CSF leakage source is detected, targeted fluoroscopy‐guided EBP should be considered over non‐targeted (blind) technique. Cervical CSF leakage can be challenging to treat with targeted EBP given the high‐risk site. Methods We present a case of microcatheter‐guided targeted cervical EBP. A 44‐year‐old male with no significant past medical history presented with 4 weeks history of refractory headaches upon sitting and standing up. MRI brain showed bilateral subdural hygromas alongside diffuse pachymeningeal enhancement. A spinal myelogram showed evidence of a CSF leak at C4‐C5 level. Results The patient was placed in prone position to access the space between the spinous processes of L2 and L3 vertebrae. A 14‐gauge 6‐inch needle was then inserted at the interlaminar space, and CSF was observed. The needle was then exchanged over a microwire with a 4F introducer sheath under fluoroscopic guidance. Once the sheath was confirmed to be in the epidural space, a 0.014‐inch microwire was introduced and advanced into the cervical region. A 0.021‐inch ID microcatheter was advanced over the wire and parked at the C5‐C6 level. Then, 10cc of autologous blood mixed with Omni opaque contrast was injected through the microcatheter into the epidural space at the C5‐C6 level. Dyna CT demonstrated blood layering in the epidural space both anteriorly and posteriorly to the Dural sac, covering the entirety of the cervical region. Patient reported an instant relief of headache during the EBP and continued to be headache‐free by the time he was discharged. Conclusion We illustrated fluoroscopy‐guided microcatheter‐assisted EBP as an effective treatment of intracranial hypotension due to cervical CSF leak.

BOOK REVIEW: CORPUS LINGUISTICS AND SECOND LANGUAGE ACQUISITION: PERSPECTIVES, ISSUES, FINDINGS

This article discusses the application of corpus linguistic methods in second language acquisition (SLA) research. It highlights the significance of utilizing native and learner corpora, along with automated tools for corpus annotation and analysis, to explore various aspects of SLA. The article is based on a book titled "Corpus Linguistics and Second Language Acquisition: Perspectives, Issues, Findings," which covers five chapters. These chapters delve into topics such as variations in L2 usage at a group level, factors influencing L2 processing and production, group-level longitudinal trajectories of L2 development, and inter- and intra-learner variability in L2 development. The book aims to provide valuable insights and methodologies for researchers interested in employing corpus linguistic methods to enhance their SLA research.

Embodied Semantics: Early Simultaneous Motor Grounding in First and Second Languages.

Although the embodiment of action-related language is well-established in the mother tongue (L1), less is known about the embodiment of a second language (L2) acquired later in life through formal instruction. We used the high temporal resolution of ERPs and topographic ERP analyses to compare embodiment in L1 and L2 and to investigate whether L1 and L2 are embodied with different strengths at different stages of linguistic processing. Subjects were presented with action-related and non-action-related verbs in a silent reading task. Subjects were late French-German and German-French bilinguals, respectively, and we could therefore collapse across languages to avoid common confounding between language (French and German) and order of acquisition (L1, L2). We could show distinct effects of embodiment and language. Embodiment affected only the sensory and lexical stages of processing with increased strength and power of the N1 component for motor vs. non-motor verbs, and language affected the lexical and semantic stages of processing with stronger P2/N400 components for L2 than for L1. Non-motor verbs elicited a stronger P1 component in L2. Our results suggest that processing words in L2 requires more effortful processing. Importantly, L1 and L2 are not embodied differently, and embodiment affects early and similar stages of processing in L1 and L2, possibly integrating other process of action-language interaction.

How are personality factors connected to EFL learners’ oral performance? A psychological network analysis

This study employs psychological network analysis to explore the intricate relationships between personality traits and second language (L2) oral performance. The participants, 162 Korean adult learners of English, completed the IPIP-NEO-60 personality trait questionnaire and a time-pressured oral narrative task. The oral narratives are assessed for two aspects of L2 knowledge (grammar and vocabulary) and two aspects of L2 processing (pronunciation and fluency). The analysis identifies two personality factors (neuroticism and extraversion) and two oral performance factors (grammar and vocabulary) as playing central roles in the network model. It shows particularly robust associations in a negative link between neuroticism and vocabulary and a positive link between conscientiousness and vocabulary, as well as a potential interaction of L2 knowledge (vocabulary) and L2 processing (fluency). The findings highlight the need for differentiated instructional strategies based on learners’ diverse personality profiles.

Vocabulary Acquisition in Beginner L2 Learners

This project focuses on how different vocabulary teaching methods may develop efficient lexical-semantic networks in L2 learners. Vocabulary that frequently co-occurs in the environment becomes associated in the lexicon (e.g., food + sports) and it strengthens the representation of vocabulary. This experiment tests the effect of co-occurrence presentation and thematic list presentation on vocabulary processing. The goal is to inform vocabulary teaching methods. L2 learners completed a pre-test, four sessions of vocabulary training, and an immediate post-test. During training sessions, participants saw images on a computer and reviewed Spanish vocabulary, under one of two conditions: one word presented at a time in thematic lists (e.g., food), or words displayed in a visual scene or context (e.g., dinner party). During testing, participants completed a picture naming task to assess how different types of vocabulary exposure impacts L2 processing. Other individual differences such as working memory and proficiency were collected as well. The results from the picture naming task show that effectiveness of training in thematic list (TL) verse visual scene (VS) depended on initial proficiency and working memory. Participants with a higher initial proficiency and working memory improved more when trained with the VS condition, while those with lower proficiency and working memory had greater success when trained via the TL condition.

Perceptual representations in L1 and L2 spatial and abstract language processing: applying an innovative sentence-diagram verification paradigm.

Perceptual representations in language comprehension were examined using sentence-picture verification tasks. However, concerns have been raised regarding the suitability of concrete pictures for representing abstract concepts compared to image-schematic diagrams. To assess the perceptual representations of spatial and abstract domains in both first language (L1) and second language (L2) processing, the study tests bilingual speakers' mental imagery on the basis of the simulation-based L1 comprehension model and proposes a simulation-based L2 comprehension model, supported by empirical evidence from an innovative sentence-diagram verification paradigm. 41 adult L1 Mandarin Chinese speakers participated in the study. 21 participants completed the Chinese sentence-diagram verification task (Experiment 1), while 20 participants completed the translation-equivalent version in L2 English (Experiment 2). Participants read a sentence [e.g., A diligent worker walked into the office (spatial sense); A strong team headed into the final (abstract sense)] at their self-paced speed, followed by a congruent (e.g., into diagram) or incongruent diagram (e.g., out-of diagram), and made binary judgments to verify spatial configurations between the sentence and diagram. Semantic rating tasks in both Chinese and English were also conducted to validate congruency between diagrams and sentences in both languages. Results from Experiment 1 indicate overall compatibility effects on L1 Chinese processing, unaffected by directional verbs or abstractness of sense. Results from Experiment 2 reveal interference effects on L2 English processing, with interference observed only after reading sentences encoding spatial senses, not abstract senses. Aligning with previous findings using sentence-picture verification tasks, the current findings confirm the weaker mental simulation effects in L2 processing compared to L1 processing. These findings extend the existing simulation-based L1 comprehension model, provide empirical support for the proposed simulation-based L2 comprehension model, and validate the innovative sentence-diagram verification paradigm for examining image-schematic representations in spatial and abstract language processing among Chinese-English bilinguals. The paradigm holds significant potential for research on perceptual representations in processing a broader range of grammatical and semantic properties during both online and offline L1 and L2 comprehension.

Definiteness matters as a discourse cue in L1 and L2 processing of relative clauses

Definiteness matters as a discourse cue in L1 and L2 processing of relative clauses

Examining modal and amodal language processing in proficient bilinguals: evidence from the modality-switch paradigm.

Recent discussions have emphasized the significance of embodied processing in language comprehension. Nevertheless, continuous debates persist regarding the relative contribution of modal (embodied) and amodal (abstract) processing of language. The current study investigated the contribution of modal processing in the first (L1) and second (L2) language, hypothesizing higher level of abstract amodal symbol processing in L2 than L1, since the correspondence of L1 and L2 (i.e., the symbol-to-symbol assignment) is in the foreground when learning L2. We employed the modality-switch paradigm (Pecher et al., 2003) in both German and French versions with proficient sequential German and French bilinguals (N = 79). Participants were presented with noun-adjective pairs (e.g., keys - jingling) in both languages and decided whether the adjective could be applied to the noun. This task repeatedly requires switching modality between trials, (e.g., from auditory [keys - jingling] to olfactory [soap - perfumed]), typically causing switch costs on response latency as compared to maintaining the modality. Contrary to the hypothesis, we observed modality switch effects (MSE) in both L1 and L2. This result suggests that embodied language processing occurs not only in the first language but also extends to the second language thus challenging the assumption that L2 processing predominantly involves abstract amodal symbol processing. Notably, however, significant L1 and L2 MSEs were found for French, whereas for German already the L1 effect was rather weak (though significant); the corresponding L2 effect was not significant. Thus, the results hinted at differences between languages regarding the relative role of modal and amodal processing.

Lumbar spine marker placement errors and soft tissue artifact during dynamic flexion/extension and lateral bending in individuals with chronic low back pain

Quantitative in vivo biomechanical assessments are typically performed with optoelectronic motion capture (MoCap) using retroreflective markers attached to skin. This technique inherently contains measurement errors from both marker placement on palpated bony landmarks and skin motion relative to the underlying bone (i.e., soft tissue artifact (STA)). Research on lumbar spine STA is scarce and limited to young, healthy participants in static positions. This study aimed to evaluate static placement errors, lumbar spine STA from MoCap marker clusters (MMC), and linear relationships between STA and patient characteristics. Thirty-nine participants with cLBP performed three trials each of flexion/extension and lateral bending while imaged simultaneously by MoCap (120 Hz) and dynamic biplane radiography DBR (20 Hz). MMCs were placed 29.5 ± 18.0 mm and 27.1 ± 13.4 mm superior to the most prominent aspect of the L1 and L5 spinous process, respectively. L1 relative to L5 STA was larger during flexion/extension (8.6 ± 5.7°) than lateral bending (4.5 ± 2.1°) (p < 0.001). After correcting for marker placement errors, components of the L1 and L5 STA averaged as much as 16.3 mm and 11.4° during flexion/extension, but only 4.0 mm and 4.8° or less during lateral bending. On average, STA for individual L1 and L5 vertebrae increased as participants moved away from the upright neutral position. STA was participant-dependent, however, age and BMI did not model STA well. Given the inaccuracy in marker placement and wide range of patterns of STA, caution is urged when making clinical decisions or when using computational models to estimate spine tissue loading based upon lumbar spine kinematics obtained from skin-mounted markers.