| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
The Journal of Neurophysiology Vol. 84 No. 2 August 2000, pp. 853-862
Copyright ©2000 by the American Physiological Society
Department of Biomedical Engineering, Northwestern University, Evanston 60622; and Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, Illinois 60611
Scheidt, Robert A.,
David J. Reinkensmeyer,
Michael A. Conditt,
W. Zev Rymer, and
Ferdinando A. Mussa-Ivaldi.
Persistence of Motor Adaptation During Constrained, Multi-Joint,
Arm Movements. J. Neurophysiol. 84: 853-862, 2000. We studied the stability of changes in motor
performance associated with adaptation to a novel dynamic environment
during goal-directed movements of the dominant arm. Eleven normal,
human subjects made targeted reaching movements in the horizontal plane while holding the handle of a two-joint robotic manipulator. This robot
was programmed to generate a novel viscous force field that perturbed
the limb perpendicular to the desired direction of movement. Following
adaptation to this force field, we sought to determine the relative
role of kinematic errors and dynamic criteria in promoting recovery
from the adapted state. In particular, we compared kinematic and
dynamic measures of performance when kinematic errors were allowed to
occur after removal of the viscous fields, or prevented by imposing a
simulated, mechanical "channel" on movements. Hand forces recorded
at the handle revealed that when kinematic errors were prevented from
occurring by the application of the channel, recovery from adaptation
to the novel field was much slower compared with when kinematic
aftereffects were allowed to take place. In particular, when kinematic
errors were prevented, subjects persisted in generating large forces
that were unnecessary to generate an accurate reach. The magnitude of
these forces decreased slowly over time, at a much slower rate than
when subjects were allowed to make kinematic errors. This finding
provides strong experimental evidence that both kinematic and dynamic
criteria influence motor adaptation, and that kinematic-dependent
factors play a dominant role in the rapid loss of adaptation after
restoring the original dynamics.
This article has been cited by other articles:
|
|
 |
|
  V. Ethier, D. S. Zee, and R. Shadmehr Spontaneous Recovery of Motor Memory During Saccade Adaptation J Neurophysiol, May 1, 2008; 99(5): 2577 - 2583. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
X. Liu and R. A. Scheidt Contributions of Online Visual Feedback to the Learning and Generalization of Novel Finger Coordination Patterns J Neurophysiol, May 1, 2008; 99(5): 2546 - 2557. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. Izawa, T. Rane, O. Donchin, and R. Shadmehr Motor Adaptation as a Process of Reoptimization J. Neurosci., March 12, 2008; 28(11): 2883 - 2891. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Ghez, R. Scheidt, and H. Heijink Different Learned Coordinate Frames for Planning Trajectories and Final Positions in Reaching J Neurophysiol, December 1, 2007; 98(6): 3614 - 3626. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. A. Scheidt and C. Ghez Separate Adaptive Mechanisms for Controlling Trajectory and Final Position in Reaching J Neurophysiol, December 1, 2007; 98(6): 3600 - 3613. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 W. Gofton, A. Dubrowski, F. Tabloie, and D. Backstein The Effect of Computer Navigation on Trainee Learning of Surgical Skills J. Bone Joint Surg. Am., December 1, 2007; 89(12): 2819 - 2827. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. L. Emken, R. Benitez, A. Sideris, J. E. Bobrow, and D. J. Reinkensmeyer Motor Adaptation as a Greedy Optimization of Error and Effort J Neurophysiol, June 1, 2007; 97(6): 3997 - 4006. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
V. S. Huang and R. Shadmehr Evolution of Motor Memory During the Seconds After Observation of Motor Error J Neurophysiol, June 1, 2007; 97(6): 3976 - 3985. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. A. Scheidt and T. Stoeckmann Reach Adaptation and Final Position Control Amid Environmental Uncertainty After Stroke J Neurophysiol, April 1, 2007; 97(4): 2824 - 2836. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. E. Milner and M. R. Hinder Position Information But Not Force Information Is Used in Adapting to Changes in Environmental Dynamics J Neurophysiol, August 1, 2006; 96(2): 526 - 534. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. E. Milner and D. W. Franklin Impedance control and internal model use during the initial stage of adaptation to novel dynamics in humans J. Physiol., September 1, 2005; 567(2): 651 - 664. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Pan, M. A. Peshkin, J. E. Colgate, and K. M. Lynch Static Single-Arm Force Generation With Kinematic Constraints J Neurophysiol, May 1, 2005; 93(5): 2752 - 2765. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 T. D. Sanger Failure of Motor Learning for Large Initial Errors Neural Comput., September 1, 2004; 16(9): 1873 - 1886. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Osu, E. Burdet, D. W. Franklin, T. E. Milner, and M. Kawato Different Mechanisms Involved in Adaptation to Stable and Unstable Dynamics J Neurophysiol, November 1, 2003; 90(5): 3255 - 3269. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. D. Takahashi, D. Nemet, C. M. Rose-Gottron, J. K. Larson, D. M. Cooper, and D. J. Reinkensmeyer Neuromotor Noise Limits Motor Performance, But Not Motor Adaptation, in Children J Neurophysiol, August 1, 2003; 90(2): 703 - 711. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. B. Dingwell, C. D. Mah, and F. A. Mussa-Ivaldi Manipulating Objects With Internal Degrees of Freedom: Evidence for Model-Based Control J Neurophysiol, July 1, 2002; 88(1): 222 - 235. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. A. Scheidt, J. B. Dingwell, and F. A. Mussa-Ivaldi Learning to Move Amid Uncertainty J Neurophysiol, August 1, 2001; 86(2): 971 - 985. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |
