A Dynamic Directional Model for Effective Brain Connectivity Using Electrocorticographic (ECoG) Time Series
利用皮层脑电时间序列研究有效脑连接的动态方向模型
We introduce a dynamic directional model (DDM) for studying brain effective connectivity based on intracranial electrocorticographic (ECoG) time series. The DDM consists of two parts: a set of differential equations describing neuronal activity of brain components (state equations), and observation equations linking the underlying neuronal states to observed data. When applied to functional MRI or EEG data, DDMs usually have complex formulations and thus can accommodate only…