3.1 Behavioral data
The ANOVA on the RT showed a significative difference among the three conditions (F(2,36)=159, p>0.001, ηp2=0.898). Post-hoc comparisons showed shorter RT (p<0.001) in Keypress condition (549 ms ±49) than Reaching (1026 ms ±175) and Reaching-Stepping(1238 ms ±234).
The ANOVA on the Err% showed no significant effect of Condition (F(2,36)=0.8, p=0.462, ηp2=0.042). The error rate was low being 1.8% ±0.9, 1.9% ±1.2 and, 1.3% ±0.8 in Keypress ,Reaching, Reaching-Stepping conditions, respectively.