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Spatiotemporal dynamics of cortical somatosensory network in typically developing children.
Song, Yanlong; Shahdadian, Sadra; Armstrong, Eryn; Brock, Emily; Conrad, Shannon E; Acord, Stephanie; Johnson, Yvette R; Marks, Warren; Papadelis, Christos.
Afiliación
  • Song Y; Neuroscience Research Center, Jane and John Justin Institute for Mind Health, Cook Children's Health Care System, 1500 Cooper St., Fort Worth, TX 76104, United States.
  • Shahdadian S; Department of Bioengineering, University of Texas at Arlington, 500 UTA Blvd., Arlington, TX 76010, United States.
  • Armstrong E; Departments of Physical Medicine and Rehabilitation and Radiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, United States.
  • Brock E; Neuroscience Research Center, Jane and John Justin Institute for Mind Health, Cook Children's Health Care System, 1500 Cooper St., Fort Worth, TX 76104, United States.
  • Conrad SE; Department of Bioengineering, University of Texas at Arlington, 500 UTA Blvd., Arlington, TX 76010, United States.
  • Acord S; Neuroscience Research Center, Jane and John Justin Institute for Mind Health, Cook Children's Health Care System, 1500 Cooper St., Fort Worth, TX 76104, United States.
  • Johnson YR; Neuroscience Research Center, Jane and John Justin Institute for Mind Health, Cook Children's Health Care System, 1500 Cooper St., Fort Worth, TX 76104, United States.
  • Marks W; Neuroscience Research Center, Jane and John Justin Institute for Mind Health, Cook Children's Health Care System, 1500 Cooper St., Fort Worth, TX 76104, United States.
  • Papadelis C; Neuroscience Research Center, Jane and John Justin Institute for Mind Health, Cook Children's Health Care System, 1500 Cooper St., Fort Worth, TX 76104, United States.
Cereb Cortex ; 34(6)2024 Jun 04.
Article en En | MEDLINE | ID: mdl-38836408
ABSTRACT
Sense of touch is essential for our interactions with external objects and fine control of hand actions. Despite extensive research on human somatosensory processing, it is still elusive how involved brain regions interact as a dynamic network in processing tactile information. Few studies probed temporal dynamics of somatosensory information flow and reported inconsistent results. Here, we examined cortical somatosensory processing through magnetic source imaging and cortico-cortical coupling dynamics. We recorded magnetoencephalography signals from typically developing children during unilateral pneumatic stimulation. Neural activities underlying somatosensory evoked fields were mapped with dynamic statistical parametric mapping, assessed with spatiotemporal activation analysis, and modeled by Granger causality. Unilateral pneumatic stimulation evoked prominent and consistent activations in the contralateral primary and secondary somatosensory areas but weaker and less consistent activations in the ipsilateral primary and secondary somatosensory areas. Activations in the contralateral primary motor cortex and supramarginal gyrus were also consistently observed. Spatiotemporal activation and Granger causality analysis revealed initial serial information flow from contralateral primary to supramarginal gyrus, contralateral primary motor cortex, and contralateral secondary and later dynamic and parallel information flows between the consistently activated contralateral cortical areas. Our study reveals the spatiotemporal dynamics of cortical somatosensory processing in the normal developing brain.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Corteza Somatosensorial / Magnetoencefalografía Límite: Child / Female / Humans / Male Idioma: En Revista: Cereb Cortex Asunto de la revista: CEREBRO Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Corteza Somatosensorial / Magnetoencefalografía Límite: Child / Female / Humans / Male Idioma: En Revista: Cereb Cortex Asunto de la revista: CEREBRO Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos