Figure 8.

Mean FA as a function of preoperative (Exp_tp2) and postoperative (Postop) behavioral performances in the monkeys trained on the visuospatial task. FA was measured in the uncinate fasciculus (A) and the ventral prefrontal (B) clusters, identified from the Exp_tp2 versus Exp_tp1, and the Postop versus Exp_tp2 contrasts, respectively. FA differences between Exp_tp2 and Postop were not significant within the UF cluster but were significant within the ventral prefrontal cluster (the cluster is defined on this basis). Each marker represents the individual monkey's mean performance, and the same symbol across colors signifies the same monkey. Blue cross symbol represents the unilateral fornix lesion monkey; hence, it is not represented in the Postop bilateral panel. The preoperative and postoperative behavioral tests took place around the monkeys' Exp_tp2 and Postop scans, respectively; therefore, the terminology used in the figure legend here refers to both the behavioral and MRI data.