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1
Hippocampal and auditory contributions to speech segmentation
In: ISSN: 0010-9452 ; Cortex ; https://hal.archives-ouvertes.fr/hal-03604957 ; Cortex, Elsevier, 2022, ⟨10.1016/j.cortex.2022.01.017⟩ (2022)
Abstract: International audience ; Statistical learning has been proposed as a mechanism to structure and segment the continuous flow of information in several sensory modalities. Previous studies proposed that the medial temporal lobe, and in particular the hippocampus, may be crucial to parse the stream in the visual modality. However, the involvement of the hippocampus in auditory statistical learning, and specifically in speech segmentation is less clear. To explore the role of the hippocampus in speech segmentation based on statistical learning, we exposed seven pharmaco-resistant temporal lobe epilepsy patients to a continuous stream of trisyllabic pseudowords and recorded intracranial stereotaxic electro-encephalography (sEEG). We used frequency-tagging analysis to quantify neuronal synchronization of the hippocampus and auditory regions to the temporal structure of words and syllables of the stream. Results show that while auditory regions highly respond to syllable frequency, the hippocampus responds mostly to word frequency. These findings provide direct evidence of the involvement of the hippocampus in speech segmentation process and suggest a hierarchical organization of auditory information during speech processing.
Keyword: [SCCO]Cognitive science; [SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]; frequency tagging; hippocampus; sEEG; speech segmentation; Statistical Learning
URL: https://hal.archives-ouvertes.fr/hal-03604957/document
https://hal.archives-ouvertes.fr/hal-03604957/file/CORTEX-D-21-00111_R1.pdf
https://hal.archives-ouvertes.fr/hal-03604957
https://doi.org/10.1016/j.cortex.2022.01.017
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2
Hippocampal and auditory contributions to speech segmentation ...
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3
The interplay between domain-general and domain-specific mechanisms during the time-course of verbal associative learning: An event-related potential study
In: ISSN: 1053-8119 ; EISSN: 1095-9572 ; NeuroImage ; https://hal.archives-ouvertes.fr/hal-03334736 ; NeuroImage, Elsevier, 2021, 242, pp.118443. ⟨10.1016/j.neuroimage.2021.118443⟩ (2021)
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4
Oscillatory activity and EEG phase synchrony of concurrent word segmentation and meaning-mapping in 9-year-old children
In: ISSN: 1878-9293 ; EISSN: 1878-9307 ; Developmental Cognitive Neuroscience ; https://hal.archives-ouvertes.fr/hal-03334735 ; Developmental Cognitive Neuroscience, Elsevier, 2021, 51, pp.101010. ⟨10.1016/j.dcn.2021.101010⟩ (2021)
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5
Arcuate fasciculus architecture is associated with individual differences in pre-attentive detection of unpredicted music changes
In: ISSN: 1053-8119 ; EISSN: 1095-9572 ; NeuroImage ; https://hal.archives-ouvertes.fr/hal-03132095 ; NeuroImage, Elsevier, 2021, 229, pp.117759. ⟨10.1016/j.neuroimage.2021.117759⟩ (2021)
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6
Oscillatory activity and EEG phase synchrony of concurrent word segmentation and meaning-mapping in 9-year-old children
In: Dev Cogn Neurosci (2021)
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7
The interplay between domain-general and domain-specific mechanisms during the time-course of verbal associative learning: An event-related potential study
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8
WORD LEARNING IN APHASIA: TREATMENT IMPLICATIONS AND STRUCTURAL CONNECTIVITY ANALYSES
In: Top Lang Disord (2020)
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9
White-matter structural connectivity predicts short-term melody and rhythm learning in non-musicians
In: ISSN: 1053-8119 ; EISSN: 1095-9572 ; NeuroImage ; https://hal.archives-ouvertes.fr/hal-02099977 ; NeuroImage, Elsevier, 2018, 181, pp.252-262. ⟨10.1016/j.neuroimage.2018.06.054⟩ (2018)
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