Skip to main content
. 2026 Apr 1;20:1702124. doi: 10.3389/fnins.2026.1702124

Figure 8.

Panel A contains four 3D scatter plots comparing ΓNSR for trigeminal sites during resting, drawing, pointing, and peg tasks, with control group in red and pain group in blue. Panel B shows four 2D scatter plots comparing normalized ΓNSR and ΓSK for resting, drawing, pointing, and peg tasks, also distinguishing control and pain groups using red and blue dots respectively.

Different representations of the face data capture shifts in gamma families of probability distributions from control to pain conditions and across the different tasks. (A) Parameter space spanned by V1, V2, V3 gamma NSR with control (red dots) and pain (blue dots), where each dot represents a participant, and each parameter space denotes the state of the face during the task. (B) The Euclidean norm of the parameters vector (V1, V2, V3) is obtained for both the NSR and the skewness, with the scalar quantities represented on a parameter plane spanned by the norm ГNSR and the ГSkewness. Notice the different shifting patterns (see details in the results section).