Previous studies have identified the Event Related Potential (ERP) components of conflict detection and resolution mechanisms in tasks requiring lexical selection at the individual word level. We investigated the brain potentials associated with these mechanisms in a lexical selection task based on multiword units made up of verb-noun combinations (e.g., eat breakfast, skip school). Native and non-native English speakers were asked to select a familiarized target verb-noun sequence (eat breakfast) between two choices. Trials were low-conflict, with only one plausible candidate (e.g., eat - shoot - breakfast) or high-conflict, with two plausible verbs (e.g., eat - skip - breakfast). Following the presentation of the noun, native English speakers showed a biphasic process of selection, with a conflict-detection centro-parietal negativity between 500 and 600 ms (Ninc), followed by a right frontal effect (RFE) between 600 and 800 ms preceding responses. Late Spanish-English bilinguals showed a similar but more sustained and more widespread effect. Additionally, brain activity was only significantly correlated with performance in native speakers. Results suggest largely similar basic mechanisms, but also that different resources and strategies are engaged by non-native speakers when resolving conflict in the weaker language, with a greater focus on individual words than on multiword units.
Keywords: ERPs; bilingualism; collocations; conflict; lexical selection; multiword units.
Conflict of interest statement
The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.
How Do French-English Bilinguals Pull Verb Particle Constructions Off? Factors Influencing Second Language Processing of Unfamiliar Structures at the Syntax-Semantics Interface.Front Psychol. 2018 Oct 17;9:1885. doi: 10.3389/fpsyg.2018.01885. eCollection 2018. Front Psychol. 2018. PMID: 30405466 Free PMC article.
Thai lexical tone perception in native speakers of Thai, English and Mandarin Chinese: an event-related potentials training study.BMC Neurosci. 2008 Jun 23;9:53. doi: 10.1186/1471-2202-9-53. BMC Neurosci. 2008. PMID: 18573210 Free PMC article.
Brain responses to nouns, verbs and class-ambiguous words in context.Brain. 2000 Dec;123 Pt 12:2552-66. doi: 10.1093/brain/123.12.2552. Brain. 2000. PMID: 11099456 Clinical Trial.
Representational deficit or processing effect? An electrophysiological study of noun-noun compound processing by very advanced L2 speakers of English.Front Psychol. 2015 Feb 9;6:77. doi: 10.3389/fpsyg.2015.00077. eCollection 2015. Front Psychol. 2015. PMID: 25709590 Free PMC article.
Bilingual and monolingual brains compared: a functional magnetic resonance imaging investigation of syntactic processing and a possible "neural signature" of bilingualism.J Cogn Neurosci. 2008 Jan;20(1):153-69. doi: 10.1162/jocn.2008.20011. J Cogn Neurosci. 2008. PMID: 17919083 Free PMC article.