S1 representations of forepaw, hindpaw, and nose are demonstrated in the 2D t-maps (A-C, upper panel). The BOLD signal time course demonstrated a well-preserved functional BOLD response in F.A. rats (A-C, lower panel). The location of CMs is represented in 3D space (D). A transparent ellipsoid was superimposed on each CM, of which the three radii demonstrated the variability of the CM coordinates along the x, y, and z axes. The displacement from the CM at a given t-threshold to the mean CM is shown as the function of t-threshold in the functional map of FP, HP, and Nose (E-G).