Supplementary Figure 3: Determination of self-motion signal.

a, Plots showing whisker angle (□_touch, blue) and whisker phase (□_touch, green) at touch sorted by object location (1-6). Correlation measures (Pearson’s correlation coefficient) are reported for 3315 protraction touches. b, Results of a linear classifier trained to predict object location using □_touch (blue) and □_touch (green). c, Average accuracy in prediction of whisker angle (□_touch) and whisker phase (□_touch) at touch from L5 Ca²⁺ signals (20 runs from 88 neurons). d, Histogram of pairwise cross-correlation coefficients from the selectivity of all L5 neurons recorded for □_touch (blue) and □_touch (green). e, Histogram of area under ROC curve for all neurons collected (n=88), analyzed for their discriminability of □_touch (blue) and □_touch (green). f, Selectivity indices of neurons (n=88) for □_touch plotted against the corresponding selectivity index for □_touch. R value shown is Pearson’s correlation coefficient.