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. 2016 Apr 7;11(4):e0152668. doi: 10.1371/journal.pone.0152668

Fig 3. Electrophysiological correlates of the sigmoid bundles: Absolute coefficients of coherence (CCohs).

Fig 3

Absolute values in three frequency bands averaged for: (A) coherent connections of anterior (A—frontopolar and frontal) with contralateral posterior (P—occipital, parietal and central) leads of the left (l) and right (r) hemispheres; (B) same connections excluding central leads. Grey bars represent the mean coefficients of the control group, horizontal lines depict standard deviations; black symbols indicate the coefficients of patients with robust genual remnant (PD 3 and 4) and residual remnant (PD 5); The number of white asterisks indicates the level of statistical significance of the difference between PD patients and control group: * p<0.05; ** p<0.01; *** p<0.001.