Simultaneous Bilinguals Research Articles

Listening comprehension in a home language: a case of Russian in Germany.

Listening comprehension is central to language learning, yet it remains the least understood and least researched skill. This statement is still relevant today, as there is insufficient research to explore listening comprehension from the perspective of family-related multilingualism and to consider the complete linguistic repertoire of multilingual speakers. Moreover, with regard to home language, listening comprehension is assumed to be a more developed language competence than reading or writing. Based on the mentioned research, the aim of the present study is to investigate listening comprehension and its influencing factors specifically in German-Russian simultaneous bilinguals aged 13-19 (n = 99) by considering the home- and majority language. The study uses quantitative data collection methods such as linguistic tests in Russian and German for the elicitation in different levels of listening and questionnaires for strategy use and background. The research questions are as follows: What does the language proficiency and input in Russian look like? (1) Regarding listening comprehension in Russian as a home language, are there differences between the speakers within comprehension on different levels, e.g., is sound decoding easier than sentence parsing? (2) If there are differences in Russian as a home language, which linguistic and background variables can correlate with the performance of listening comprehension on its different levels? Concerning the first research question, the results show relevant differences between four different levels of listening comprehension (phoneme, word, sentence, and text level), which strengthened the assumed complexity of listening comprehension in the home language. In addition, the results show different connections between the listening comprehension competence and the input from different family members, as well as exposure to film and television in the home and majority language.

Sociolinguistic Style, Awareness, and Agency among Southern California Latinx Spanish–English Bilinguals

This study examined different degrees of awareness regarding the stigmatization of Southern California (SoCal) Spanish across four groups of Spanish–English bilinguals from Southern California (n = 87). The participants were presented with Spanish sentences and asked to decide which profile of speaker would likely express that sentence, given six options, such as: “someone living in Los Angeles/SoCal who grew up in Mexico” or “a Spanish-English bilingual who grew up in Los Angeles/SoCal”. Experimental stimuli included seven different linguistic categories of stigmatization, including English contact forms. The participants tended to attribute the stigmatized forms to bilinguals who grew up in Southern California. Central Colloquial and Taboo categories were more salient and perceived as forms used by people in Mexico. In contrast, English borrowings and redundancies seemed to be recognized by the participants, particularly for simultaneous bilinguals who grew up in Southern California, as salient forms of an identified Southern California Spanish variety. The results are interpreted within Exemplar Theory, with certain stigmatized forms indexing “Mexican Spanish” exemplars, and English borrowings identified as exemplars of SoCal Spanish. We advocate for usage-based approaches to understanding language perceptions and critical approaches to interrogating academic discourses.

German Noun Plurals in Simultaneous Bilingual vs. Successive Bilingual vs. Monolingual Kindergarten Children: The Role of Linguistic and Extralinguistic Variables

(1) Background: The complex phenomenon of German noun plural inflection is investigated in three groups of German-speaking kindergarten children: (a) monolinguals (1L1), (b) simultaneous bilinguals (2L1) also acquiring Croatian, and (c) successive bilinguals (L2) acquiring Turkish as L1. Predictions of the usage-based schema model and of Natural Morphology concerning different linguistic variables are used to explore their impact on plural acquisition in the three groups of children. (2) Methods: A longitudinal study (from mean age 3;1 to 4;8) is conducted using two procedures (a formal plural test and spontaneous recordings in kindergarten), and the data are analyzed using generalized linear (mixed-effects) regression models in R. (3) Results: All children produce more errors in the metalinguistically challenging test compared to spontaneous speech, with L2 children being particularly disadvantaged. Socioeconomic status (henceforth SES) and teachers’ plural type frequency are most relevant for 1L1 children, and kindergarten exposure is more relevant for L2 children, while the linguistic variables are more important for 2L1 children. (4) Conclusions: The main predictions of the schema model and of Natural Morphology are largely confirmed. All of the linguistic variables investigated show significant effects in some analyses, but morphotactic transparency turns out to be the most relevant variable for all three groups of children.

The Effect of Age of First Exposure on Vocabulary, Mean Length of Utterance, Morphosyntactic Accuracy, and Semantic and Sentence-Level Patterns in the First 2 Years of French Second-Language Learning by Preschool- to Adolescent-Age Mandarin Speakers.

Bilingual assessment is particularly difficult in the very first period of children's second language (L2) exposure. This exploratory, longitudinal study examined L2 learning after 1 and 2 years of L2 exposure by young immigrants and how it is affected by their age at first exposure to the L2 (AoE). Participants were 18 immigrants ranging in age from 2;11 to 14;2 (years;months), all within their first year in Montreal at Time 1, enrolled in a French school or day care, and from a Mandarin first language background. Participants were tested again a year later. Measures included receptive and expressive French vocabulary tests and conversational language samples analyzed using traditional measures of mean length of utterance (MLU) and morphological accuracy as well as novel measures of semantic and sentence-level patterns. Performance was relatively high already at Time 1 and increased significantly at Time 2 in both vocabulary and MLU. At Time 2, vocabulary scores were below normative values, whereas MLU was within expected values relative to monolingual and simultaneous bilinguals for the majority of the participants. However, higher MLUs were accompanied by more instances of both semantic errors and creative semantic strategies. French performance was strongly related to AoE; with amount of exposure equivalent, older participants outperformed the younger ones on MLU and vocabulary. Semantic errors and creative uses were strongly predicted by AoE; however, morphological accuracy and number of agrammatical utterances were not. This initial period of French learning involved a rapid growth spurt for most of the participants. We argue that the pattern observed, particularly among the older children, constitutes an early stage of L2 learning characterized by long utterances that are also frequently hard to understand as speakers encounter challenges and use creative strategies in their attempt to convey meaning. Comparison with normative reference bases for monolinguals and bilinguals with greater cumulative L2 exposure who have similar MLUs should be done with much caution during this early period.

Early language experience and modality affect parietal cortex activation in different hemispheres: Insights from hearing bimodal bilinguals

The goal of this study was to investigate the impact of the age of acquisition (AoA) on functional brain representations of sign language in two exceptional groups of hearing bimodal bilinguals: native signers (simultaneous bilinguals since early childhood) and late signers (proficient sequential bilinguals, who learnt a sign language after puberty). We asked whether effects of AoA would be present across languages – signed and audiovisual spoken – and thus observed only in late signers as they acquired each language at different life stages, and whether effects of AoA would be present during sign language processing across groups. Moreover, we aimed to carefully control participants’ level of sign language proficiency by implementing a battery of language tests developed for the purpose of the project, which confirmed that participants had high competences of sign language.Between-group analyses revealed a hypothesized modulatory effect of AoA in the right inferior parietal lobule (IPL) in native signers, compared to late signers. With respect to within-group differences across languages we observed greater involvement of the left IPL in response to sign language in comparison to spoken language in both native and late signers, indicating language modality effects. Overall, our results suggest that the neural underpinnings of language are molded by the linguistic characteristics of the language as well as by when in life the language is learnt.

The Effects of Language Background and Parental Education on Measures of Cognitive Ability: An Analysis of the WPPSI-IV Cognitive Profiles of Monolingual, Simultaneous Bilingual, and Sequential Bilingual German Children Aged 4 to 7 Years.

The present study investigated the possible effects of language background (monolinguals, simultaneous bilinguals, and sequential bilinguals) and parental education (no/low, medium, high, and highest parental education) on measures of cognitive ability provided by the Wechsler Primary and Preschool Scale-Fourth Edition (WPPSI-IV). Statistical analyses were based on a sample of 290 children (130 females, 160 males). Three multivariate variance analyses were conducted to identify possible effects. In cases of statistically significant main effects, post hoc analyses were additionally performed to identify group differences. The results indicated that simultaneous bilinguals performed more similarly to monolinguals than sequential bilinguals. On average, sequential bilinguals achieved significantly lower scores on the Verbal Comprehension Index (VCI), the Vocabulary Acquisition Index (VAI), and the associated subtests than monolinguals and simultaneous bilinguals. Significantly lower average scores on VAI and the associated subtests were found for simultaneous bilinguals compared to monolinguals. Children with parents having no, a lower, or a medium educational level achieved significantly lower scores on VCI, VAI, and the FSIQ than children with parents having a high or highest educational level on average. The present findings suggest that the WPPSI-IV represents a suitable and reliable test battery for the assessment of cognitive skills in children with different language backgrounds and parental educational levels.

The Early Bilingual: A Case Study of an Iranian Infant

Simultaneous bilinguals are children who are exposed to more than one language prior to age three. They develop two or more languages equally, or nearly equally, through exposure and frequent opportunities to use each language. To date there has been little agreement about important questions of, can a baby born acquire second language in an EFL setting but just like her/his mother tongue? The aim of this investigation has been to identify the most important factors influencing on being an early bilingual. (Sort of SIMULTANIOUS bilingual). To consequence; Also it would be possible to acquire second language exactly like the mother tongue at the same time (from the birth). As the timing factor in early education monolinguals or late bilinguals. The sooner age to start being as the active bilinguals, can make learners better performance even than the.

Demonstratives in Spanish–Catalan simultaneous bilinguals: which system do they prefer?

Abstract Demonstratives are cross-linguistically widespread deictic expressions. Demonstrative systems exhibit variation in number of terms, and parameters affecting their usage. The present paper assesses the relationship between spatial deixis and bilingualism: how language dominance affects speakers of two languages with different demonstrative systems. Here, we compare the use of demonstratives by 72 European Spanish-Catalan simultaneous bilinguals in Mallorca to 30 European Spanish monolinguals. Our results confirmed a significant effect of physical distance between speaker and referent on demonstrative choice in both languages, and differences between languages in the use of the middle term. We did not find the expected effect of language dominance in simultaneous bilinguals. Moreover, we found no influence of the hearer's position on demonstrative choice in monolinguals or bilinguals in European Spanish or Majorcan Catalan. In view of our results, the present study contributes to the debate on how bilingual speakers employ different deictic expressions.

The effect of age of acquisition on listening effort: Pupillometry and subjective measures

Bilinguals typically perform worse on speech-perception-in-noise relative to monolinguals, and bilinguals who learned the language later typically perform worse than those who learned it earlier. This decrement in performance has largely been attributed to the fact that both bilingualism and later acquisition result in comparatively less exposure to a language than monolingualism and earlier acquisition do. Though this effect of age of acquisition has been well-documented for speech recognition accuracy, less is known about how it affects listening effort. This study quantifies listening effort using three measures (pupil dilation, subjective effort ratings, and subjective fatigue ratings) for four listening conditions (quiet, easy, moderate, and hard). We collect these measures from four groups of participants: monolinguals, simultaneous bilinguals, early sequential bilinguals, and late bilinguals. Data collection is ongoing for a target sample size of 128 (32 per group). Based on related work, we expect greater listening effort for listeners with later ages of acquisition (e.g., late bilinguals relative to simultaneous bilinguals), and for that effect to increase with worsening acoustic quality (i.e., the hard relative to the easy condition). Preliminary results (N = 56) support these hypotheses. These data provide foundational insights into the relationship between bilingualism and listening effort.

Phonetics of Early Bilingualism

This article presents an overview of recent research on the phonetics of early bilinguals, individuals who have acquired both of their languages early in life, by either growing up being exposed to two languages since birth (i.e., simultaneous bilinguals) or having initially learned their first language with the second language introduced at a later stage during their childhood (i.e., early sequential or successive/consecutive bilinguals). This review puts forth empirical evidence from methodologically and theoretically diverse studies on the phonetics of early bilingualism and considers explanations for the observed patterns of cross-linguistic influence on the production, perception, and processing of sounds in both of their languages. Throughout, this article discusses the critical significance of early linguistic experience on bilingual speech patterns, how early-onset bilinguals perceive speech sounds in each language, bilinguals’ phonetic abilities when producing language-specific segmental and suprasegmental features, and the dynamic nature of cross-language sound interactions in early bilingual speech.

Early Precursors of Reading Development in Simultaneous Bilinguals: A Systematic Review and Meta-Analysis

Purpose: Literacy precursors are cognitive, linguistic, and oral-language skills that predict future reading skills in children as young as 4 years. Speech-language pathologists and educators utilize these precursors as assessment tools to identify children at risk for reading difficulties. Most current tools are developed based on monolinguals (predominantly in English), despite the significant percentage of bilinguals globally. As such, bilingual children are typically assessed on tools developed for monolinguals in research and clinical settings. Despite this common practice, there is a lack of comprehensive synthesis on whether these precursors are a reliable indicator of reading skills in bilingual children. Our article examines whether literacy precursors commonly used with monolinguals are associated with reading development in simultaneous bilinguals. Method: Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Cochrane guidelines, our review includes four databases (Linguistics and Language Behavior Abstracts, Educational Resources Information Center, Modern Language Association, and PsycINFO), in addition to gray-literature and manual reference-list searches. To control for age of acquisition and language dominance variability, we included typically developing simultaneous bilinguals exposed to both languages before age 3 years ( N = 5,942). We analyzed reported statistical associations between code-related or oral-language precursors and reading outcome measures, using correlational meta-analyses. Results: The 41 reports, which met inclusion/exclusion criteria, were published between 1977 and 2022. The average age at assessment was 7;5 (years;months; range: 3;0–11;0), with children speaking over 21 bilingual language combinations. Our meta-analysis demonstrated significant within-language correlations and cross-language transfer effects for code-related (e.g., phonological awareness) and oral-language (e.g., vocabulary and morphological awareness) precursors. Semantic awareness, however, was not a reliable predictor in bilinguals. Conclusions: Phonological awareness and vocabulary measures—even if originally developed for monolingual children—can form a meaningful component of early literacy assessment in simultaneous bilingual children: These precursors may be used as assessment tools across heritage and societal languages in research and clinical practice. Future research suggestions within this domain are also discussed. Supplemental Material: https://doi.org/10.23641/asha.23880465

The language learning strategies of multilinguals: the influence of age of acquisition in early bilingualism

ABSTRACT This project studies how Spanish-Catalan early bilinguals use language learning strategies (LLS) differently depending on their order of language acquisition when they are learning French as an L4. Considering that the use of LLS has been pointed out as a sign of successful language learning, the study inquires whether being a simultaneous bilingual constitutes an advantage over being a sequential bilingual of the same languages. Ninety high school students (52 simultaneous bilinguals and 38 sequential bilinguals) were recruited from Valencia (Spain) and completed a self-report questionnaire on their use of LLS. Students also completed a linguistic background questionnaire, a proficiency self-assessment, and a translation task. Age, proficiency in French, and type of language acquisition (simultaneous or sequential) were included in the analysis. Results showed that simultaneous bilinguals used LLS more frequently than sequential bilinguals, particularly compensation strategies, and that participants’ age had a significant effect on their use of metalinguistic strategies. These results show that there are qualitative differences between the language learning management of simultaneous and sequential bilinguals, and demonstrate that differences between these two groups are worthy of further exploration.

Phonological and morphological literacy skills in English and Chinese: A cross-linguistic neuroimaging comparison of Chinese-English bilingual and monolingual English children.

Over the course of literacy development, children learn to recognize word sounds and meanings in print. Yet, they do so differently across alphabetic and character-based orthographies such as English and Chinese. To uncover cross-linguistic influences on children's literacy, we asked young Chinese-English simultaneous bilinguals and English monolinguals (N = 119, ages 5-10) to complete phonological and morphological awareness (MA) literacy tasks. Children completed the tasks in the auditory modality in each of their languages during functional near-infrared spectroscopy neuroimaging. Cross-linguistically, comparisons between bilinguals' two languages revealed that the task that was more central to reading in a given orthography, such as phonological awareness (PA) in English and MA in Chinese, elicited less activation in the left inferior frontal and parietal regions. Group comparisons between bilinguals and monolinguals in English, their shared language of academic instruction, revealed that the left inferior frontal was less active during phonology but more active during morphology in bilinguals relative to monolinguals. MA skills are generally considered to have greater language specificity than PA skills. Bilingual literacy training in a skill that is maximally similar across languages, such as PA, may therefore yield greater automaticity for this skill, as reflected in the lower activation in bilinguals relative to monolinguals. This interpretation is supported by negative correlations between proficiency and brain activation. Together, these findings suggest that both the structural characteristics and literacy experiences with a given language can exert specific influences on bilingual and monolingual children's emerging brain networks for learning to read.

Syntactic optionality in heritage Spanish: How patterns of exposure and use affect clitic climbing

Aims and Objectives: This study explores Spanish heritage speakers’ (HSs) knowledge of clitic climbing and the (extra-)linguistic factors that modulate it. Design: Heritage speakers of Spanish completed three screening tasks (a background language questionnaire, a productive vocabulary task, and proficiency task) and two experimental tasks (an elicited production task, and a forced choice task) examining their knowledge of clitic climbing in different contexts. Data and Analysis: Thirty-nine participants completed two experimental tasks. Each task included 32 critical items distributed in four conditions. The data were analyzed using generalized linear mixed models. Findings: Patterns of language exposure and use are a strong predictor for clitic climbing knowledge while the effects of age of onset of bilingualism found contradict our hypothesis. Originality: This study examines production and interpretation data of clitic climbing knowledge in combination with extralinguistic factors that may facilitate heritage language acquisition and maintenance. Sequential bilinguals show a stronger enclisis bias than simultaneous bilinguals. Significance: The results show that, in cases of optionality, self-reported heritage language exposure and use may be a stronger predictor than age of onset of bilingualism of the dominant language. Limitations: This study does not have acceptability data on either grammatical or ungrammatical instances of proclisis or enclisis. In addition, because the test items feature different verbs, no lexical analysis can be conducted. Finally, using an adapted version of the BLP instead of its original normed version restricts opportunities for comparability and reproducibility.

RAN and two languages: a meta-analysis of the RAN-reading relationship in bilingual children

RAN (Rapid Automatized Naming) is known to be a robust predictor of reading development in different languages. Much less is known about RAN predictive power in bilingual contexts. This is the first meta-analysis of research with bilingual children, assessing the strength of the RAN-reading relationship both within and across languages. It also explored the moderators that may affect this relationship. The search identified 38 published studies of bilingual children with 47 samples, 313 effect sizes and 5312 participants. Analyses of random-effects models with robust variance estimation revealed weak-to-moderate overall effect sizes of RAN and reading concurrently (r = −.39) and longitudinally (r = −.38). Moderator analyses of concurrent correlations revealed that RAN correlated more strongly with reading fluency (r = −.56) than accuracy (r = −.38). Alphanumeric RAN tasks (digits r = −.39, letters r = −.42) showed stronger associations with reading than non-alphanumeric RAN tasks (objects r = −.38, colors r = −.25). RAN-reading correlation was statistically significant both within and across languages. It was somewhat weaker when the two skills were measured in different languages (rL1RAN—L2 reading = −.34, rL2RAN—L1 reading = −.36) compared to when they were measured in the same language (rL1 = −.40, rL2 = −.44), though those differences failed to reach statistical significance. In addition, the type of bilingualism was found to be a potential moderator of the RAN-reading relationship longitudinally, with its magnitude being the strongest in simultaneous bilinguals. Our results suggest that, as a predictor, RAN taps into general, language-independent processes underlying reading.

How frequent are these verbs?

In monolingual (L1) acquisition, children produce target-like subject-verb agreement early in development in both Spanish (Grinstead 1998) and English (Guasti 2002). However, in heritage simultaneous bilinguals (2L1) and child second language acquirers (L2), agreement morphology shows variability (Goldin 2020; Herschensohn & Stevenson 2005) due to age of acquisition (AoA) effects. Lexical frequency is another factor that has been shown to play a role in modulating L1 (i.e. Ambridge et al. 2015) and heritage acquisition (i.e. Giancaspro 2017, 2020), but little is known about its effect in child L2. This study explores the extent to which verb lexical frequency plays a role in the acquisition of verb morphology for bilingual children with differing AoA, comparing 42 2L1 heritage children with 46 L2 Spanish learners with AoA of 5;0. They participated in a Spanish fill-in-the-blanks production task. The results of an analysis focused on singular correr and comer (chosen because they differ in only one phoneme) indicated that responses to comer, the more frequent verb, were more target-like for both groups, and that frequency showed a stronger effect for heritage 2L1 children than for L2 children, while also modulating non-target-like responses. We discuss these findings with implications for bilingual development and education.

Even Simultaneous Bilinguals Do Not Reach Monolingual Levels of Proficiency in Syntax

While there is no doubt that children raised bilingual can become extremely proficient in both languages, theorists are divided on whether bilingualism is effectively monolingualism twice (the “Two Monolinguals in One Brain” hypothesis) or differs in some fundamental way from monolingualism. A strong version of the “Two Monolinguals” hypothesis predicts that bilinguals can achieve monolingual-level proficiency in either (or both) of their languages. Recently, Bylund and Abrahamsson argued that evidence of lower syntactic proficiency in simultaneous bilinguals was due to confounds of language dominance; when simultaneous bilinguals are tested in their primary language, any difference disappears. We find no evidence for this hypothesis. Meta-analysis and Monte Carlo simulation show that variation in published results is fully consistent with sampling error, with no evidence that method mattered. Meta-analytic estimates strongly indicate lower syntactic performance by simultaneous bilinguals relative to monolinguals. Re-analysis of a large dataset (N = 115,020) confirms this finding, even controlling for language dominance. Interestingly, the effect is relatively small, challenging current theories.

Production of pronoun gender by children acquiring Russian as a minority language: comparison with the effects of developmental language disorder

This paper studies the acquisition of Russian pronominal gender by Dutch-Russian simultaneous bilinguals (4;3-7;11) growing up in the Netherlands. The performance of the bilingual group is compared to that of age-matched monolinguals with and without developmental language disorder (DLD). We hypothesize that reduced exposure toRussian in the minority-language context may lead to delays in language development, comparable to problems attested in DLD (in this case due to reduced intake). The results of a narrative elicitation task demonstrate that both monolingual groups performed at ceiling from age 4 onwards. Monolingual children with DLD were as accurate at using pronominal gender as their unimpaired peers fromthe earliest ages studied, which supports the processing accounts of DLD taking morphological richness of the target language into account. In contrast, 4-year-old bilinguals performed around chance level. The performance of the bilingual group improved with age and reached the monolingual level only by age 7. The results suggest that reduced input has more impact on theacquisition of gender in a morphologically rich language, whereas the possible effects of DLD are no longer visible after age 3.

Entropy convergence in early bilinguals' syntactic packaging.

A core question in developmental and cognitive research concerns the way linguistic variation affects the acquisition process. Previous research on monolinguals suggests that children, but not adults, tend to regularize inconsistent input, resulting in reduced variation. Some recent claims explain regularization as a general bias linked to cognitive load. However, little is known about bilingual acquisition contexts where children naturally experience both increased variability and cognitive load. This study investigated the impact of between- and within-language variability in syntactic packaging (i.e., how semantic elements are mapped onto syntactic units) on simultaneous bilinguals’ acquisition of motion event encoding. In this domain, French is considered highly variable, in contrast to low variability demonstrated by English. Based on this crosslinguistic contrast, 96 English–French bilingual children (aged 4–11 years) and 96 age-matched monolinguals of each language described 32 animated cartoons showing complex motion events. Children’s variability of selected syntactic patterns was measured using the information-theoretical concept of entropy. Results indicated that bilingual children significantly reduced syntactic variation relative to monolingual peers, but only in French, the more variable language. Moreover, bilingual children converged in entropy levels across the two languages and patterned mid-way between respective monolinguals. These findings suggest that the cognitive load inherent in bilingualism is not sufficient to explain reduced linguistic variation. Instead, the asymmetric drop in entropy highlights the strong impact of crosslinguistic differences and thus underlines the importance of taking language-specific factors into account in theories of cognitive load.

The effect of simultaneous exposure on the attention selection and integration of segments and lexical tones by Urdu-Cantonese bilingual speakers.

In the perceptual learning of lexical tones, an automatic and robust attention-to-phonology system enables native tonal listeners to adapt to acoustically non-optimal speech, such as phonetic conflicts in daily communications. Previous tone research reveals that non-native listeners who do not linguistically employ lexical tones in their mother tongue may find it challenging to attend to the tonal dimension or integrate it with the segmental features. However, it is unknown whether the attentional interference initially caused by a maternal attentional system would continue influencing the non-optimal tone perception for simultaneous bilingual teenagers. From an endpoint in the age of language acquisition, we investigate whether the tone-specific attention mechanism developed by the Urdu-Cantonese simultaneous bilinguals is automatic enough to assist them in adapting to a phonetically-conflicting environment. Three groups of teenagers engaged in a four-condition ABX task: Urdu-Cantonese simultaneous bilinguals, Cantonese native listeners, and Urdu-speaking, late learners of Cantonese. The results showed that although the simultaneous bilinguals could phonologically process Cantonese tones in a Cantonese-like way under a conflict-free listening condition, they still failed in adapting to the phonetic conflicts, especially the segment-induced ones. It thus demonstrated that the simultaneous exposure and years of regular education in Hong Kong local schools still could not automatically guarantee simultaneous bilingual processing of Cantonese tones. In interpreting the findings, it hypothesized that, except for simultaneous exposure, the development of a tone-specific attention mechanism is also likely to be L1-inhibitory, tone experience-driven, and language-specific for simultaneous bilinguals.