Spatio-temporal Granger causality: A new framework

@article{Luo2013SpatiotemporalGC,
  title={Spatio-temporal Granger causality: A new framework},
  author={Qiang Luo and Wenlian Lu and Wei Cheng and Pedro A. Valdes-Sosa and Xiaotong Wen and Mingzhou Ding and Jianfeng Feng},
  journal={NeuroImage},
  year={2013},
  volume={79},
  pages={241-63}
}
That physiological oscillations of various frequencies are present in fMRI signals is the rule, not the exception. Herein, we propose a novel theoretical framework, spatio-temporal Granger causality, which allows us to more reliably and precisely estimate the Granger causality from experimental datasets possessing time-varying properties caused by physiological oscillations. Within this framework, Granger causality is redefined as a global index measuring the directed information flow between… CONTINUE READING
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