Figure 2. The visual kinematics modulates the temporal estimation.

Each symbol indicates the mean value (±standard error). The colors code the Stimulus (red - Bio kinematics, blue-NBio constant motion), whereas the shape codes the Task (circle-key K, triangle–arm A). The green zone highlights the region where stimulus duration was close to the natural arm movement duration. (a) Accuracy. ΔEstimation (ms, y-axis)-as function of the stimulus velocity (°/s, x-axis). In each experimental condition ΔE was calculated as the mean difference between time reproduction responses and stimulus durations. (b) Time Reproduction. Time (ms, y-axis) as a function of the -stimuli durations-Time (ms, x-axis). The black line indicates a perfect time reproduction. (c) Precision. Standard Deviation (y-axis) - as function of the -stimuli durations- Time (ms, x-axis).