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Related Concept Videos

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  3. Research Domains
  5. Biomedical And Clinical Sciences
  7. Neurosciences
  9. Computational Neuroscience (incl. Mathematical Neuroscience And Theoretical Neuroscience)
  11. Dynamic Causal Tractography Analysis Of Auditory Descriptive Naming: An Intracranial Study Of 106 Patients.
  1. Home
  3. Research Domains
  5. Biomedical And Clinical Sciences
  7. Neurosciences
  9. Computational Neuroscience (incl. Mathematical Neuroscience And Theoretical Neuroscience)
  11. Dynamic Causal Tractography Analysis Of Auditory Descriptive Naming: An Intracranial Study Of 106 Patients.

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Dynamic Causal Tractography Analysis of Auditory Descriptive Naming: An Intracranial Study of 106 Patients.

Aya Kanno1, Ryuzaburo Kochi2, Kazuki Sakakura3

  • 1Department of Pediatrics, Children's Hospital of Michigan, Wayne State University, Detroit, MI 48201, USA; Department of Neurosurgery, Sapporo Medical University, Sapporo, Hokkaido, 0608543, Japan.

Neuroimage
|June 14, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

This study reveals how brain networks dynamically coordinate during spoken language processing. Different white matter tracts support specific stages of naming, challenging the idea of single pathways for speech.

Keywords:
broadband high-frequency activitydiffusion tensor imaging (DTI) tractographyepilepsy surgeryintracranial electroencephalography (EEG) recording

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Neuroimaging

Background:

  • Understanding spoken language involves complex brain network interactions.
  • The specific roles of white matter pathways in real-time speech production remain unclear.

Purpose of the Study:

  • To map the dynamic, millisecond-scale network activity during auditory descriptive naming.
  • To identify the causal roles of specific white matter fasciculi in speech production.

Main Methods:

  • Utilized intracranial high-gamma activity from epilepsy patients undergoing direct cortical stimulation.
  • Constructed a Dynamic Causal Tractography Atlas to visualize network dynamics.
  • Correlated network activity with stimulation-induced language and speech manifestations.
language

Main Results:

  • Identified specific time-windowed coactivation patterns linked to speech.
  • Found that multiple fasciculi, not single ones, support each naming stage.
  • Pinpointed fasciculi and linguistic stages affected by handedness.

Conclusions:

  • Clarified the dynamic, coordinated neural activity through specific fasciculi in auditory naming.
  • Advanced neurobiological models of speech network organization.
  • Highlighted the stage-specific roles of white matter tracts in speech.