Figure 3
From: Too hard to control: compromised pain anticipation and modulation in mild traumatic brain injury
Schematic of the effects of brain injury on pain modulatory system based on the observed moderation functional magnetic resonance imaging (fMRI) results. Scatter plots representing significant moderation effects of brain injury on the relationship between anticipatory PAG activation and subjective pain. The healthy control (HC) group demonstrated significant negative relationship between anticipatory periaqueductal grey (PAG) activation and the reported pain intensity rating (ρ=−0.747; P<0.01) (green). This was not observed in the mild traumatic brain injury (MTBI) group (ρ=0.218; P=0.4) (orange). PSC, percent signal change.
