ArticleScience advances2024
The human auditory cortex concurrently tracks syllabic and phonemic timescales via acoustic spectral flux.
Article in Science advances, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Music Is Quasi-Rhythmic Too: Comparing Bandwidth in Speech and Music Acoustic Modulation Spectra.Annals of the New York Academy of Sciences · 2026Article
- Noise-invariant representations of sound emerge along the canonical cortical hierarchy.PLoS biology · 2026Article
- Article
- Cortical speech envelope tracking reflects lesion-symptom profiles in post-stroke aphasia.Brain communications · 2026Article
- Moving rhythmically can facilitate naturalistic speech perception in a noisy environment.Proceedings. Biological sciences · 2025Article
- Aligning statistical models with inference goals in the neuroscience of language: A dual-dependency taxonomy.Imaging neuroscience (Cambridge, Mass.)Article
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5 authors.
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Abstract
Dynamical theories of speech processing propose that the auditory cortex parses acoustic information in parallel at the syllabic and phonemic timescales. We developed a paradigm to independently manipulate both linguistic timescales, and acquired intracranial recordings from 11 patients who are epileptic listening to French sentences. Our results indicate that (i) syllabic and phonemic timescales are both reflected in the acoustic spectral flux; (ii) during comprehension, the auditory cortex tracks the syllabic timescale in the theta range, while neural activity in the alpha-beta range phase locks to the phonemic timescale; (iii) these neural dynamics occur simultaneously and share a joint spatial location; (iv) the spectral flux embeds two timescales-in the theta and low-beta ranges-across 17 natural languages. These findings help us understand how the human brain extracts acoustic information from the continuous speech signal at multiple timescales simultaneously, a prerequisite for subsequent linguistic processing.
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