[[File:Diagram of Dynamic Causal Modelling - Causal Modelling and Brain Connectivity in Functional Magnetic Resonance Imaging by Karl Friston.png|thumb|300px|比较两个竞争的因果模型(DCM,GCM)用于解释[[fMRI 图像]]<ref>{{cite journal | doi=10.1371/journal.pbio.1000033 | pmid=19226186 | pmc=2642881 | author=Karl Friston | title=Causal Modelling and Brain Connectivity in Functional Magnetic Resonance Imaging | journal=PLOS Biology| volume=7 | number=2 | pages=e1000033 | date=Feb 2009}}</ref>]] | [[File:Diagram of Dynamic Causal Modelling - Causal Modelling and Brain Connectivity in Functional Magnetic Resonance Imaging by Karl Friston.png|thumb|300px|比较两个竞争的因果模型(DCM,GCM)用于解释[[fMRI 图像]]<ref>{{cite journal | doi=10.1371/journal.pbio.1000033 | pmid=19226186 | pmc=2642881 | author=Karl Friston | title=Causal Modelling and Brain Connectivity in Functional Magnetic Resonance Imaging | journal=PLOS Biology| volume=7 | number=2 | pages=e1000033 | date=Feb 2009}}</ref>]] |