#4161. Optimizing auditory input for foreign language learners through a verbotonal-based dichotic listening approach

August 2026publication date
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Journal’s subject area:
Education
Linguistics and Language
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Abstract:
The quality of the physical language signals to which learners are exposed and which result in neurobiological activity leading to perception constitutes a variable that is rarely, if ever, considered in the context of language learning. The current study identifies an optimal audio language input signal for Chinese EFL/ESL learners generated by modifying the physical features of language-bearing audio signals. This is achieved by applying the principles of verbotonalism in a dichotic listening context. Low-pass filtered (320 Hz cut-off) and unfiltered speech signals were dichotically and diotically directed to each hemisphere of the brain through the contralateral ear. Results showed that the filtered stimuli in the left ear and unfiltered in the right ear (FL-R) configuration provided optimal auditory language input by actively exploiting left-hemispheric ominance for language processing and right-hemispheric dominance for melodic processing and it actually did so effectively. In addition, the filtered stimuli in the right ear and unfiltered in the left ear (L-FR) configuration was identified as entirely non-optimal for language learners.
Keywords:
Dichotic listening; ERP; fMRI; Hemispheric specialization; Language learning; Verbotonalism

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