Fig. 6
From: Interaction between position sense and force control in bimanual tasks
Experiment 2. Indicators of performance in the force matching task: difference between the forces applied by the two hands (left (L) hand – right (R) hand) displayed with respect to hand configurations averaged over the two target forces. Top row: symmetric hand configurations (HC1 and HC2). Bottom row: asymmetric hand configurations (HC3 and HC4). All the panels show the population results (mean value ± SE). In each panel, the data is reported separately for each target force (dark blue for the lower force, light blue for the higher) and the dashed lines connect the performance in the different hand configurations for the same target force. Panel a absolute-error. Panel b bias-error, here the gray dashed line represents the null difference between the two hands (i.e., the desired performance). Panel c variable-error. * indicates statistical significance: * p < 0.05, ** p < 0.01 and *** p < 0.001