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Related Experiment Videos

The interpreter's brain during rest - Hyperconnectivity in the frontal lobe.

Carina Klein1, Silvana Iris Metz1, Stefan Elmer1

  • 1Division of Neuropsychology, Department of Psychology, University of Zurich, Zurich, Switzerland.

Plos One
|August 24, 2018
PubMed
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Simultaneous interpreters (SIs) show enhanced brain connectivity between prefrontal regions involved in executive control, even at rest. This neural fingerprint highlights the brain adaptations from demanding language tasks.

Area of Science:

  • Neuroscience
  • Cognitive Science
  • Linguistics

Background:

  • Simultaneous translation is a complex human faculty demanding significant linguistic and executive functions.
  • Bilingual individuals and simultaneous interpreters (SIs) offer unique insights into expertise-related neural adaptations.
  • Investigating resting-state brain activity can reveal underlying neural network patterns associated with language expertise.

Purpose of the Study:

  • To determine if simultaneous interpreters exhibit a distinct neural network activation pattern during a task-free resting state.
  • To identify domain-specific brain region activation related to speech processing and cognitive control in SIs.
  • To explore neural adaptations in the brain associated with high-level language expertise.

Main Methods:

Related Experiment Videos

  • Electroencephalography (EEG) data were collected from 16 simultaneous interpreters and 16 multilingual control subjects.
  • Graph-theoretical network analyses were employed to examine brain connectivity patterns.
  • Activity was analyzed in the alpha frequency range during a resting-state condition.

    • Main Results:

    • Simultaneous interpreters exhibited increased interhemispheric hyperconnectivity compared to controls.
    • This hyperconnectivity was observed between the ventral prefrontal cortex and the dorsolateral prefrontal cortex (DLPFC).
    • The observed pattern was specific to the alpha frequency band.

    Conclusions:

    • High cognitive demands of simultaneous interpreting lead to enhanced neural communication in prefrontal executive control networks.
    • This neural fingerprint of language expertise is detectable even during a resting state.
    • Findings suggest that specialized language skills induce lasting changes in brain network organization.