The distance from the initial to the final hand position (D13) averaged across subjects with standard error bars for the short (A), medium (B), long (C), and very long (D) distances produced by the perturbation. The data (including perturbation times) were averaged across the three trials with the same combinations of distance and dwell time within each subject. Further, the data were averaged across subjects. The data points correspond to the nine perturbation times (the sum of movement time and TDWELL). For zero perturbation time, we assume D13 = 0. An exponential regression D13 = a × (1 − e−b × PT) was fitted to the data points. The corresponding R2 are provided.