Figure 1
From: Underlying neurological mechanisms associated with symptomatic convergence insufficiency

(A) Averaged vergence eye movement position (°) as a function of time (s) from BNC (solid blue line) and CI (solid red line) participants with ± one standard deviation (BNC blue shaded and CI red shaded) with the averaged peak velocity (°/s) as a function of time (s) from BNC (dashed blue line) and CI (dashed red line) participants. (B) Two-sample unpaired t-test of functional activity differences between BNC and CI groups during the vergence jump step fast fusional experiment showing V2, OMV, and right cuneus are significantly different between groups. (C) Linear regression of mean beta weight from right cuneus ROI using a 5 mm radius sphere as a function of peak velocity for BNC (blue circle) and CI (red triangle) participants. Linear regression (solid black line) analysis shows Pearson’s correlation coefficient of r = 0.33, p = 0.002 between right cuneus functional activity and vergence peak velocity.