Figure 3

Triangle-reaching task. Exemplificative trajectories of two healthy and two dystonic subjects (the most uniform and least uniform among both dystonic and healthy subjects), in the 3 conditions (A, B and C). The first four and the last four trials are indicated in black dashed and thick lines, respectively, while the intermediate ones in blue for healthy and in red for dystonic. The yellow arrows represent the disturbing force along x-axis, i.e. horizontal.