We also compared the reliability for the PC and HD groups at both the region level (supplementary Figure S6A). ICC of the PD group was higher than the HC group on incongruent (t396.01 = 3.099, p = 0.002), spatial cue (t387.62 = 7.486, p < 0.001), and center cue contrast (t396.19 = 5.534, p < 0.001). No difference was found in other contrasts (all ps > 0.05). However, the two groups yielded a similar pattern: the ICC ranked the order of congruent, incongruent, spatial cue, center cue, no cue, executive, alerting, and orienting (supplementary Figure S6B).
As the Schefer-Yeo atlas omitted the subcortical parcellations, we reported reliability estimates for the basal ganglia (12 parcellations) and thalamus (16 parcellations) using the Brainnetome atlas. Consistent with results at the cortical level, subcortical analysis also yielded a similar finding that reliability for the contrast map was poorer than their associated condition (Figure 5, supplementaryTable S10 ). In addition, at least half of thalamus subregions showed a reliability higher than 0.5 for at least the congruent and incongruent conditions.