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. 2020 Jul 10;27:102345. doi: 10.1016/j.nicl.2020.102345

Fig. 2.

Fig. 2

Top and bottom images illustrate the group-specific effective connectivity dynamics for the control and the PTSD group, respectively. Asterisks denote the particular parameter surpassed significance in group comparisons. Network nodes are included in the circles and the lines represent the connections between the nodes. Solid and dashed lines indicate an endogenous and a modulatory connection, respectively. Yellow, blue, and red lines indicate a direct, an inhibitory (or decrease), or an excitatory (or increase) connection, respectively. The size of the line gives a relative indication of the strength of the underlying model connectivity parameter.

Abbreviations: PAG: periaqueductal gray; PCN: precuneus; mPFC: medial prefrontal cortex; NW: neutral stimulus condition; TW: trauma-related stimulus condition; PTSD: posttraumatic stress disorder.