Abstract #3374

White Matter Structural Connectivity is Associated with Spectral Coherence and Phase Synchronization Measured by Intracranial EEG

Bingyang Cai¹, Shize Jiang², Hui Huang¹, Jiwei Li¹, Siyu Yuan¹, Ya Cui¹, Lihong Tang¹, Liang Chen², and Jie Luo¹

¹School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China, ²Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China

Synopsis

Keywords: Brain Connectivity, Diffusion Tensor ImagingUsing high quality atlas of the structural connectome, and direct recording of neuronal activity by stereotactic-EEG (SEEG), this study investigated the relationship between neuronal signal connectivity at different seizure stage and the white matter scaffold. The results show electrical signal spectral coherence and phase synchronization are significantly stronger between structurally connected nodes within short distance, while at the time of pre-seizure and seizure onset, high frequency (>80Hz) signal may propagate through longer distance with structural connections.

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