Cognitive control of language production in bilinguals involves a partly independent process within the domain-general cognitive control network: Evidence from task-switching and electrical brain activity

David A. Magezi, Asaid Khateb, Michael Mouthon, Lucas Spierer, Jean Marie Annoni

Research output: Contribution to journalArticlepeer-review

Abstract

In highly proficient, early bilinguals, behavioural studies of the cost of switching language or task suggest qualitative differences between language control and domain-general cognitive control. By contrast, several neuroimaging studies have shown an overlap of the brain areas involved in language control and domain-general cognitive control. The current study measured both behavioural responses and event-related potentials (ERPs) from bilinguals who performed picture naming in single- or mixed-language contexts, as well as an alphanumeric categorisation task in single- or mixed-task context. Analysis of switch costs during the mixed-context conditions showed qualitative differences between language control and domain-general cognitive control. A 2. ×. 2 ANOVA of the ERPs, with domain (linguistic, alphanumeric) and context (single, mixed) as within-participant factors, revealed a significant interaction, which also suggests a partly independent language-control mechanism. Source estimations revealed the neural basis of this mechanism to be in bilateral frontal-temporal areas.

Original languageEnglish
Pages (from-to)55-63
Number of pages9
JournalBrain and Language
Volume122
Issue number1
DOIs
StatePublished - Jul 2012

Bibliographical note

Funding Information:
This work was supported by a Grant from the Swiss National Science Foundation to JMA (#32-138497, #325100-118362). The Cartool software (sites.google.com/site/fbmlab/Cartool.htm) has been programmed by Denis Brunet, from the Functional Brain Mapping Laboratory, Geneva, Switzerland, and was supported by the Centre for Biomedical Imaging of Geneva and Lausanne. We would like to thank Jean-François Knebel (University of Lausanne) for the software to carry out the ANOVAs.

Keywords

  • Event-related potentials (ERPs)
  • First language
  • Overt naming
  • Second language
  • Source localisation
  • Task selection

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Speech and Hearing
  • Cognitive Neuroscience
  • Language and Linguistics
  • Linguistics and Language

Fingerprint

Dive into the research topics of 'Cognitive control of language production in bilinguals involves a partly independent process within the domain-general cognitive control network: Evidence from task-switching and electrical brain activity'. Together they form a unique fingerprint.

Cite this