Table 1:

Fitted parameters (mean ± SD) and statistical differences (t values, p values) comparing the effects of HOLD and ROTATE conditions on planning time and goal-state error, as well as grip choice (according to the psychometric function described in the Materials and Methods subsection Measures of task performance)

Effects of action type on task performanceHOLD trialsROTATE trialsHOLD vs ROTATE
Planning time (ms)420 (20)411 (18)t(21) = 2.471, p = 0.022
Goal-state error (°)2.96 (1.14)8.35 (3.26)t(21) = 7.250, p < 0.001
Grip choice
Posture bias (∝)0.967 (0.029)0.671 (0.244)t(21) = 5.859, p < 0.001
Systematic bias (β)0.021 (0.022)0.235 (0.184)t(21) = 5.554, p < 0.001
Switch range (1/γ)0.092 (0.014)0.141 (0.076)t(21) = 2.876, p = 0.009
Phase difference (Δφ)135.4 (71.8)162.3 (18.5)t(21) = 1.929, p = 0.067