Linguistic Approaches to Bilingualism - Volume 11, Issue 5, 2021

Earlier work indicates that bilingualism may positively affect statistical learning, but leaves open whether a bilingual benefit is (1) found during learning rather than in a post-hoc test following a learning phase and (2) explained by enhanced verbal short-term memory skill in the bilinguals. Forty-one bilingual and 56 monolingual preschoolers completed a serial reaction time task and a nonword repetition task (NWR). Linear mixed-effect regressions indicated that the bilinguals showed a stronger decrease in reaction times over the regular blocks of the task than the monolinguals. No group differences in accuracy-based measures were found. NWR performance, which did not differ between the groups, did not account for the attested effect of bilingualism. These results provide partial support for effects of bilingualism on statistical learning, which appear during learning and are not due to enhanced verbal short-term memory. Taken together, these findings add to a growing body of research on effects of bilingualism on statistical learning, and constitute a first step towards investigating the factors which may underlie such effects.

This study examined corpus data from learners of Japanese whose L1s are English, Korean, and Mandarin (as well as native-speaker Japanese controls), in order to investigate the effect of two separate (but sometimes conflated) potential influences on overt pronoun production in the L2: (i) whether or not the L1 is a topic-drop language (like Japanese), and (ii) the properties of overt pronouns in the L1 compared to those of Japanese. In order to investigate (i), the rate of overt pronoun use in topic/argument position for all three learner groups was tabulated and compared to that of native speakers. In order to investigate (ii), total rate of overt pronoun use in all positions was tabulated, as well as the type of case-/discourse-marking particles that accompanied overt pronouns in each learner group, compared to native speakers. Results show no influence of L1 topic-drop status, but some influence of L1 overt pronoun properties, in the form of (a) interactions between the morphosyntax of pronouns and broader DP/NP structure in the L1 and L2, and (b) shared discourse properties of the overt pronoun in the L1 and L2.

This study investigates how children lexicalize motion events in their first and second languages, L1-Turkish and L2-English. English is a satellite-framed language that conflates motion with manner expressed in the main verb and path in a non-verbal element, whereas Turkish is a verb-framed language that conflates motion with path in the main verb and expresses manner in a subordinated verb. We asked three questions: (1) Does early L2 acquisition in an L1 dominant society affect motion event lexicalization in L1? (2) Is the effect of L2 on L1 subject to change due to decline in L2 exposure? (3) Do L1 vs. L2 lexicalizations differ within the bilingual mind? One hundred and twelve 5- and 7-year-old monolingual and bilingual children watched and described video-clips depicting motion events. For L1 descriptions, 5-year-old bilinguals used more manner structures than monolinguals. No difference was found for 7-year-olds. For L2 descriptions, 7-year-old bilinguals used more manner-only constructions compared to their L1 descriptions. For 5-year-old bilinguals no difference was found. Findings suggest that early exposure to a second language had an impact on how motion events are packaged, while decline in L2 exposure dampened the effects of L2.

The contrast between /ʎ/ and /ʝ/ has been lost in most Spanish varieties. This merger (yeísmo) has also been claimed to have spread to Basque. I study the palatal merger in Azpeitia Basque and Spanish, where simultaneous (2L1 Basque, Spanish) and early-sequential (L1 Basque, L2 Spanish) groups were tested in both languages. Comparing the two bilingual groups, this study found that, as a group, early-sequential bilinguals do not merge the phonemes in either of the two languages. However, while simultaneous bilinguals maintain the distinction in Basque, they tend to merge the phonemes in Spanish. Inter-speaker variation is found within each group and individual reports do not confirm global results. This study has also encountered different types of speakers as far as the palatal merger is concerned in Basque and Spanish: (1) non-mergers in any of the languages, (2) mergers in both languages, (3) mergers only in Spanish, and (4) mergers only in Basque.

The study investigated the capacity of language experiences to predict cognitive performance of bilingual adults, with a special focus on participants’ proactive (mixing costs) and reactive (switching costs) control processes. Using a Language and Social Background Questionnaire, demographic and language data were collected from a linguistically diverse group of 60 bilingual adults residing in Australia. The participants were then tested on a non-verbal switching task. The results of multiple regressions revealed that two of the language variables being examined accounted for the variance in the mixing and switching costs. In particular, reduced mixing costs were related to the use of two languages in a dual-language context and earlier onset age of active bilingualism; reduced switching costs were linked to a dual-language context only. These findings reveal that bilingual experiences contribute to shaping proactive and reactive control processes across cognitive domains.