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Related Experiment Video

Updated: Mar 23, 2026

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
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Foreign-accented speech modulates linguistic anticipatory processes.

Carlos Romero-Rivas1, Clara D Martin2, Albert Costa3

  • 1Center for Brain and Cognition, Universitat Pompeu Fabra, Carrer de Tànger, 122, 08018 Barcelona, Spain.

Neuropsychologia
|March 30, 2016
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Summary

Listener anticipation of words is affected by speaker accent. Brain responses show that semantic priming effects disappear when listening to accented speech, impacting language processing.

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Area of Science:

  • Psycholinguistics
  • Neuroscience of Language
  • Sociophonetics

Background:

  • Listeners anticipate upcoming words during sentence comprehension.
  • This anticipation involves pre-activating semantically related words.
  • The influence of speaker indexicality, like accent, on this process is not well understood.

Purpose of the Study:

  • To investigate whether anticipatory language processing is modulated by speaker accent.
  • To examine the neural correlates of semantic priming in native versus accented speech.

Main Methods:

  • Event-related brain potentials (ERPs) were recorded from native Spanish listeners.
  • Participants listened to highly constrained Spanish sentences produced by native or foreign-accented speakers.
  • Sentence endings included expected completions, semantically related words, or unrelated words.

Main Results:

  • Native speech: Smaller N400 amplitudes for semantically related words compared to unrelated words, indicating successful semantic priming.
  • Accented speech: No significant difference in N400 amplitudes between semantically related and unrelated words, suggesting impaired semantic priming.
  • This indicates that the N400 component is sensitive to speaker accent.

Conclusions:

  • Linguistic anticipatory processes, specifically semantic priming, are affected by speaker indexical properties like accent.
  • Speaker accent can disrupt the automatic pre-activation of semantically related words during sentence comprehension.
  • These findings highlight the role of speaker characteristics in real-time language processing and prediction.