ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2023
Intonation Units in Spontaneous Speech Evoke a Neural Response.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Cortical speech envelope tracking reflects lesion-symptom profiles in post-stroke aphasia.Brain communications · 2026Article
- How Low-Frequency Neural Activity Structures Language in Time.Neurobiology of language (Cambridge, Mass.) · 2026Article
- Disentanglement of prosodic meaning: Toward a framework for the analysis of nonverbal information in speech.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- A universal of speech timing: Intonation units form low-frequency rhythms.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Low-frequency cortical activity reflects context-dependent parsing of word sequences.iScience · 2025Article
- Language-specific neural dynamics extend syntax into the time domain.PLoS biology · 2025Article
- Concurrent processing of the prosodic hierarchy is supported by cortical entrainment and phase-amplitude coupling.Cerebral cortex (New York, N.Y. : 1991) · 2024Article
- Different sustained and induced alpha oscillations emerge in the human auditory cortex during sound processing.Communications biology · 2024Article
- Speech Prosody Serves Temporal Prediction of Language via Contextual Entrainment.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- Chunk boundaries disrupt dependency processing in an AG: Reconciling incremental processing and discrete sampling.PloS one · 2024Article
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5 authors.
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Abstract
Spontaneous speech is produced in chunks called intonation units (IUs). IUs are defined by a set of prosodic cues and presumably occur in all human languages. Recent work has shown that across different grammatical and sociocultural conditions IUs form rhythms of ∼1 unit per second. Linguistic theory suggests that IUs pace the flow of information in the discourse. As a result, IUs provide a promising and hitherto unexplored theoretical framework for studying the neural mechanisms of communication. In this article, we identify a neural response unique to the boundary defined by the IU. We measured the EEG of human participants (of either sex), who listened to different speakers recounting an emotional life event. We analyzed the speech stimuli linguistically and modeled the EEG response at word offset using a GLM approach. We find that the EEG response to IU-final words differs from the response to IU-nonfinal words even when equating acoustic boundary strength. Finally, we relate our findings to the body of research on rhythmic brain mechanisms in speech processing. We study the unique contribution of IUs and acoustic boundary strength in predicting delta-band EEG. This analysis suggests that IU-related neural activity, which is tightly linked to the classic Closure Positive Shift (CPS), could be a time-locked component that captures the previously characterized delta-band neural speech tracking.
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