Figure 5

Supplemental study findings. A) Spatial profile of imposed hand forces (scale bars: 0.5 N), B) Cumulative Gaussian psychometric functions fit to observed likelihoods of correct response at each of the applied force perturbation levels for selected NIC (filled circles and solid line) and SS-P (open circles and dashed line) participants. Other figure elements are as described in Figure 3A. C) Hand force detection threshold as a function of participant group. D) Choice uncertainty as a function of participant group. In C) and D), error bars: ±1 SD. E) Plot of DT vs. CU for all participants in the secondary experimental study (□: NIC; ∆: SS + P; o: SS-P). The curved lines correspond to the 95% and 99% confidence bounds on the cumulative bivariate distribution of NIC data points. The encircled triangle corresponds to the results of a SS + P participant with paresthesia and tactile deficits (but no clinical deficits of limb position sense).