Figure 5. Hand-velocity variables.

Effects of recall-delay and cognitive-task on hand velocity (peak resultant velocity in the transverse plane, time-to-peak-velocity and time-after-peak-velocity) are shown in (A) and (B), respectively. Means and standard deviations are shown for young adults (gray) and older adults (black). Note that older adults tended to achieve lower peak velocity, as well as spending significantly longer time on deceleration (i.e. larger time-after-peak-velocity). § indicates a significant difference due to age (main effect); * indicates a significant difference due to cognitive-task in (B) (α=0.05); whiskers indicate standard deviations.