Language control in bilinguals is often investigated with the language switching paradigm. Switch costs reflect the ease/difficulty of applying this control mechanism. The type of stimuli employed in the experiments may influence switch costs. To date, only one study has compared digit vs picture processing, reporting reduced switch costs for digits (Declerck, Koch & Philipp, 2012). This result was adjudicated to phonological overlap between the languages used. Crucially, it remains an open question whether this digit effect generalises to language combinations without phonological relation. We fill this gap by investigating language switching with two language pairs differing in relative proficiency (L1 Chinese–L2 English, L1 Chinese–L3 French), where cross-language phonological activation is not expected. Overall, a digit effect is observed in the Chinese–English pair. Contrary to Declerck et al.'s (2012) finding, digits increased switch costs. Phonological mediation cannot explain this effect; instead, we suggest its origin lies in within-language word association links.

Previous studies analysing the differences in emotionality in first and second language suggest that affective content of lexical items is modulated in certain contexts. This paper investigates the differences in valence and arousal ratings for 300 early words, in both oral and written modalities, through speakers’ subjective appraisal of words given by two immersion groups of Spanish late bilinguals (Chinese and European) compared with a group of native speakers. The main goal of our study is to identify the lexical areas where variability occurs, regarding to a set of affective (emotional charge and intensity), grammatical (nouns, adjectives and verbs) and semantic (concreteness) features of words. Our results show that valence is the dimension where the greatest variability is observed between native and bilinguals, although the influence of the independent factors differs considerably. Besides, arousal yields illuminating data regarding the grammatical category of words and differentiation between the groups of participants.

To date, the evidence regarding the effect of bilingualism/multilingualism on short-term memory (STM) and working memory (WM) capacity is inconclusive. This study investigates whether multilingualism has a positive effect on the verbal STM and WM capacity of neurotypical middle-aged and older individuals. Eighty-two L1-Norwegian sequential bilingual/multilingual academics were tested with tasks measuring verbal STM/WM capacity. Degree of bilingualism/multilingualism for each participant was estimated based on a comprehensive questionnaire. Different measures of bilingualism/multilingualism were used. Data on potentially influencing non-linguistic factors were also collected. Correlation and regression analyses showed that multilingualism impacts both verbal STM and verbal WM. In particular, all analyses showed that number of known foreign languages was the strongest predictor of verbal STM and WM capacity. The results are discussed in light of recent studies on the impact of bilingualism on STM/WM and on recent proposals regarding the mechanism underlying so-called bilingual advantage.

A large literature has shown that language context –mixing and switching between languages – impacts lexical access processes during bilingual speech production. Recent work has suggested parallel contextual effects of language context on the phonetic realization of speech sounds, consistent with interactions between lexical access and phonetic processes. In this pre-registered study, we directly examine the link between lexical access and phonetic processes in Spanish–English bilinguals using picture naming. Using automated acoustic analysis, we simultaneously gather measures of reaction time (indexing lexical access) and acoustic properties of the initial consonant and vowel (indexing phonetic processes) for the same speakers on the same trials. Across measures, we find consistent, robust effects of mixing and language dominance. In contrast, while switching effects are robust in reaction time measures, they are not detected in phonetic measures. These inconsistent effects suggest there are constraints on the degree of interaction between lexical access and phonetic processes.

A long-standing question about bilingualism concerns which representations are shared across languages. Recent work has revealed a bilingual Sentence Superiority Effect (SSE) among French–English bilinguals reading mixed-language sentences: identification of target words is more accurate in syntactically grammatical than ungrammatical sentences. While this ability to connect words across the two languages has been attributed to a rapid parsing of shared syntactic representations, outstanding questions remain about the role of semantics. Here, we replicate the SSE in Spanish–English bilinguals (e.g., better identification of vacío in “my vaso is vacío” [my glass is empty] than “is vaso my vacío” [is glass my empty]). Importantly, we report evidence that semantics do contribute to word identification, but significantly less than syntax and only in the context of syntactically grammatical sentences. Moreover, the effect is moderated by language proficiency, further constraining the conditions under which shared cross-linguistic representations are rapidly accessed in the bilingual mind.

Effective communication in multilingual environments requires bilinguals to constantly monitor linguistic cues. It is hypothesized that the constant need to monitor may result in improved attention. However, previous investigations have reported mixed, often null results, with positive findings attributed to non-linguistic variables. To address these issues, we investigated whether higher levels of bilingualism were associated with improved attentional function in a sample of culturally and socioeconomically homogenous Mandarin–English speaking bilingual adolescents. Participants completed the Attention Network Task to assess attentional network function. Data were analyzed using linear mixed-effects models in order to account for nontrivial differences. Mixed results provide partial support for domain general cognitive benefits associated with higher levels of bilingualism. Both improved and reduced performance differed based on the specific dimension of bilingualism and the attentional network assessed. Findings support the conclusion that separable dimensions of bilingual language experience assert different influences on attentional network function.

The performance of cognitive tests is highly dependent on the proficiency of the language in which the tests are administered. Not all Indonesians speak Indonesian daily and many are bilingual. We investigate whether language(s) spoken affects the performance on three language tests in 840 participants ranging in age (16–80) and education (6–22 years). Analysis of covariance followed by Helmert contrasts showed a disadvantage on the Boston Naming Test (BNT) and on the most difficult items of the Token Test for those who do not speak Bahasa daily. Bilinguals did worse on the BNT. Education had a large positive effect on the language tests, age a smaller negative effect. This suggests that besides age and education, the factor of language spoken, either in public or at home, needs to be taken into account when a participant's test scores on the BNT and TT are interpreted and compared with normative data.

Despite a meteoric rise, results in the cognitive science of bilingualism present with significant inconsistency. In parallel, there is a striking absence of an ecologically valid theory within bilingualism research. How should one interpret the totality of available data that can pull in opposing directions? To proceed, we need to identify which practices impede progression. Hitherto, we bring to the fore an undiscussed practice, contextualizing how it impacts the ability to embed the available results into an overarching theory. We suggest that a stacking the deck fallacy – the tendency to engage differently with available evidence, directing focus to specific sub-samples – hampers theory formation. We put forth a proposal for making progress, building on the premise that what is lacking in the field is a unifying perspective that reconciles seemingly contradictory results. We suggest that the necessary shift of perspective towards progress crucially entails linking the notions of spectrum and trade-off.

This study investigated whether L1-Korean L2-English speakers could use (in)definiteness to predict unmentioned (non-)unique referents. In previous studies on the topic, methodological considerations made it difficult to separate the effects of grammar from the effects of non-linguistic knowledge. We used a visual world paradigm eye-tracking task to resolve such issues and designed stimuli that focused only on (in)definiteness. Participants’ eye movements were recorded as they heard “Click on the/a blue circle.” L1 and advanced L2 speakers used definiteness information to predict unique referents before the critical noun (circle) was heard while indefinite articles were not utilized to the same extent. Intermediate L2 speakers relied heavily on color words, not articles, to locate a referent. The results imply that predicting a referent solely based on definiteness (without real-world knowledge) requires substantial advancement in L2 development, and indefinite articles do not predict non-unique referents as clearly as definite articles predict unique referents.

Previous research has shown that using foreign languages reduces cognitive biases. Here, we investigate whether this foreign-language effect extends to self-related cognition – in particular, the self-positivity bias, which refers to automatic association of oneself with positive information and has a facilitation role in maintaining mental health. We applied event-related brain potentials and oscillations in the implicit association test where Chinese–English bilinguals responded to category words (self vs. others) and attribute words (positive vs. negative) in either their native language Chinese or their foreign language English. In response to Chinese words, a self-positivity bias occurred, indexed by a positive D-score in reaction times as well as by smaller N200, larger P3-like/LPC responses, and lower alpha desynchronization when self words were associated with positive relative to negative traits. However, the bias was diminished in the English context. Overall, our findings provide important implications for language choices when self-protective mechanisms should be enhanced.

Drawing on naturally-occurring bilingual speech from a well-defined codeswitching community in Southern Arizona, this study examined the influence of semantic gender (a.k.a. biological gender), analogical gender, and other-language phonemic cues in modulating gender assignment in Spanish–English codeswitched speech. Thirty-four Spanish–English early bilinguals completed a forced-choice elicitation task involving two codeswitching environments: Spanish determiner–English noun switches (Task 1) and English–Spanish switched copula constructions (Task 2). The results revealed that for human-denoting nouns, bilinguals assigned grammatical gender based on the presupposed sex of a noun's referent in both syntactic environments tested. As for inanimate nouns, bilinguals were more likely to assign masculine over feminine gender to such nouns in determiner–noun switches, but not in switched copula constructions. Other-language phonemic cues did not influence the assignment mechanism. A methodological implication is that the study replicated the codeswitching patterns observed in naturally-occurring bilingual speech from the same bilingual community.

This study opens a project that empirically investigates the Plurilingual Creativity paradigm. This paradigm expands the Multilingual Creative Cognition by making shifts in the conceptualization of the phenomena of multilingualism and creativity, respectively. We examined how multilingual and multicultural factors can contribute to divergent thinking. Online data collection included assessments of language repertoire, multicultural experience, intercultural competence, and divergent thinking. A series of regression analyses obtained evidence for the direct contribution of language repertoire, intercultural competence components and multicultural experience to divergent thinking. In addition, language repertoire was found to moderate the link between management of intercultural interaction and fluency, multicultural experience and both flexibility and originality in divergent thinking. These findings emphasize the importance of considering the contribution of plurilingual/pluricultural factors of language repertoire, multicultural experience, and intercultural competence to creativity. Thereby, these findings provide empirical support for the conceptual shift toward plurilingual creativity.

Despite extensive discussions on interpreter advantages in nonverbal abilities/skills, the advantage in coordination remains underexplored, with little evidence from interpreting students across different training stages. To fill the gap, the present study conducted two experiments with the Psychological Refractory Period dual-task consisting of two discrimination tasks presented either alone or together. Smaller dual-task costs in Task 1 and/or Task 2 are considered indices for better coordination (with smaller costs restricted to Task 2 further suggesting better bottleneck coordination). Experiment 1, focusing on the intermediate training stage, revealed a bottleneck coordination advantage for interpreting students over controls, which differs from the task instantiation and/or bottleneck access advantage found for professional interpreters in Strobach et al. (2015). Experiment 2, focusing on the beginning stage, revealed no group differences between controls and interpreting students with less/more training (Experiment 2a/2b respectively), suggesting no evidence for an interpreter advantage in coordination. Developmental changes are discussed.

We conducted a systematic review and meta-analysis on the association between nonword repetition (NWR) and language exposure in bilingual children and explored whether the association is influenced by other variables. We performed a blind literature review on ERIC and Google Scholar, a random-effects model meta-analysis and subgroup analyses to test potential moderators. Out of 822 screened articles, we identified 24 works including 1399 children. Significant associations were found using either cumulative or current exposure, language-like nonwords, phoneme NWR scoring, in children with typical language development. Nonsignificant associations were found in studies either using age of first exposure, on children older than six, with less than 50 participants, using NWR lists containing 16-24 nonwords or with participants having different native languages. Weak associations were found when considering whole-word scoring or gray literature. We highlight the contributions of different variables to NWR, and evidence to optimally design NWR for bilingual language assessment.