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Early stage second-language learning improves executive control: evidence from ERP.

Margot D Sullivan1, Monika Janus1, Sylvain Moreno2

  • 1York University, Canada.

Brain and Language
|December 3, 2014
PubMed
Summary

Early second language learning enhances executive control, as shown by neural changes in bilinguals. This study reveals that even brief language training can positively impact cognitive functions.

Keywords:
BilingualismERPExecutive controlGo–nogoNeuroplasticitySecond-language trainingSentence judgment

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Area of Science:

  • Cognitive Neuroscience
  • Psycholinguistics
  • Second Language Acquisition

Background:

  • Bilingualism is often associated with enhanced executive control.
  • The developmental trajectory of this bilingual advantage, particularly in early stages of language learning, remains underexplored.
  • Understanding when these cognitive benefits emerge is crucial for educational and neurological research.

Purpose of the Study:

  • To investigate the impact of early-stage second-language (L2) training on executive control functions.
  • To determine if a brief period of L2 instruction can induce measurable changes in cognitive performance and neural activity.
  • To explore the neural correlates of executive control changes following L2 acquisition.

Main Methods:

  • Monolingual English-speaking students were recruited for a 6-month study.
  • Participants were divided into a training group (introductory Spanish) and a control group (introductory Psychology).
  • Executive control was assessed using a go-nogo task, sentence judgment task, and verbal fluency tests, with electroencephalography (EEG) measures (P3, P600 amplitudes).

Main Results:

  • The Spanish training group exhibited increased P3 amplitude on the go-nogo task, suggesting improved inhibitory control.
  • The Spanish group also showed decreased P600 amplitude on the sentence judgment task, indicating enhanced language processing efficiency.
  • No significant behavioral changes or differences between groups were observed, highlighting the sensitivity of neural measures.

Conclusions:

  • Brief second-language learning can induce neural changes associated with enhanced executive control.
  • These findings suggest that the bilingual advantage in executive control may emerge early in the language learning process.
  • The study underscores the potential of L2 acquisition to positively modulate cognitive functions and their neural underpinnings.