TY - JOUR
T1 - Fast and fine-tuned corrections when the target of a hand movement is displaced
AU - Oostwoud Wijdenes, L.
AU - Brenner, E.
AU - Smeets, J.B.J.
PY - 2011
Y1 - 2011
N2 - To study the strategy in responding to target displacements during fast goal-directed arm movements, we examined how quickly corrections are initiated and how vigorously they are executed. We perturbed the target position at various moments before and after movement initiation. Corrections to perturbations before the movement started were initiated with the same latency as corrections to perturbations during the movement. Subjects also responded as quickly to a second perturbation during the same reach, even if the perturbations were only separated by 60 ms. The magnitude of the correction was minimized with respect to the time remaining until the end of the movement. We conclude that despite being executed after a fixed latency, these fast corrections are not stereotyped responses but are suited to the circumstances. © 2011 The Author(s).
AB - To study the strategy in responding to target displacements during fast goal-directed arm movements, we examined how quickly corrections are initiated and how vigorously they are executed. We perturbed the target position at various moments before and after movement initiation. Corrections to perturbations before the movement started were initiated with the same latency as corrections to perturbations during the movement. Subjects also responded as quickly to a second perturbation during the same reach, even if the perturbations were only separated by 60 ms. The magnitude of the correction was minimized with respect to the time remaining until the end of the movement. We conclude that despite being executed after a fixed latency, these fast corrections are not stereotyped responses but are suited to the circumstances. © 2011 The Author(s).
U2 - 10.1007/s00221-011-2843-4
DO - 10.1007/s00221-011-2843-4
M3 - Article
SN - 0014-4819
VL - 214
SP - 453
EP - 462
JO - Experimental Brain Research
JF - Experimental Brain Research
IS - 3
ER -