Spatiotemporal organization of human sensorimotor beta burst activity
Spatiotemporal organization of human sensorimotor beta burst activity
Abstract Beta oscillations in human sensorimotor cortex are hallmark signatures of healthy and pathological movement. In single trials, beta oscillations include bursts of intermittent, transient periods of high-power activity. These burst events have been linked to a range of sensory and motor processes, but their precise spatial, spectral, and temporal structure remains unclear. Specifically, a role for beta burst activity in information coding and communication suggests spatiotemporal patterns, or travelling wave activity, along specific anatomical gradients. We here show in human magnetoencephalography recordings that burst activity in sensorimotor cortex occurs in planar spatiotemporal wave-like patterns that dominate along two axes either parallel or perpendicular to the central sulcus. Moreover, we find that the two propagation directions are characterised by distinct anatomical and physiological features. Finally, our results suggest that sensorimotor beta bursts occurring before and after a movement share the same generator but can be distinguished by their anatomical, spectral and spatiotemporal characteristics, indicating distinct functional roles.
Bonaiuto James J、Mardell Lydia C、Bestmann Sven、Zich Catharina、Quinn Andrew J、O?ˉNeill George、Ward Nick S
Institut des Sciences Cognitives Marc Jeannerod||Universit¨| Claude Bernard Lyon 1, Universit¨| de LyonDepartment of Clinical and Movement Neuroscience, UCL Queen Square Institute of NeurologyDepartment of Clinical and Movement Neuroscience, UCL Queen Square Institute of Neurology||Wellcome Centre for Human Neuroimaging, UCL Queen Square Institute of NeurologyDepartment of Clinical and Movement Neuroscience, UCL Queen Square Institute of Neurology||Wellcome Centre for Integrative Neuroimaging, FMRIB, Nuffield Department of Clinical Neurosciences, University of OxfordOxford Centre for Human Brain Activity, Wellcome Centre for Integrative Neuroimaging, Department of Psychiatry, University of OxfordWellcome Centre for Human Neuroimaging, UCL Queen Square Institute of NeurologyDepartment of Clinical and Movement Neuroscience, UCL Queen Square Institute of Neurology
生物物理学生理学
Beta burstSensorimotor cortexTraveling waveoscillation
Bonaiuto James J,Mardell Lydia C,Bestmann Sven,Zich Catharina,Quinn Andrew J,O?ˉNeill George,Ward Nick S.Spatiotemporal organization of human sensorimotor beta burst activity[EB/OL].(2025-03-28)[2025-04-27].https://www.biorxiv.org/content/10.1101/2022.05.19.492617.点此复制
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