Psychophysical studies of reaching movements suggest that hand kinematics
are learned from errors in extent and direction in an extrinsic coordinate
system, whereas dynamics are learned from proprioceptive errors in
an intrinsic coordinate system. We examined consolidation and interference
to determine if these two forms of learning were independent. Learning
and consolidation of two novel transformations, a rotated spatial
reference frame and altered intersegmental dynamics, did not interfere
with each other and consolidated in parallel. Thus separate kinematic
and dynamic models were constructed simultaneously based on errors
computed in different coordinate frames, and possibly, in different
sensory modalities, using separate working-memory systems. These
results suggest that computational approaches to motor learning should
include two separate performance errors rather than one.
Versuchspersonen mussten eine neue Kinematik oder Dynamik lernen.
Obwohl sowohl kinematik als auch dynamik beim lernen durch interferent
gestört werden, kann gleichzeitig oder nach ein andere eine neue
Kinematik oder Dynamik gelernt werden. Experimentiert wurde mit Zielbewegungen
des Armes. Diese beiden Prozesse sind demnach unabhängug.
%0 Journal Article
%1 Krakauer1999
%A Krakauer, John W.
%A Ghilardi, Maria-Felice
%A Ghez, Claude
%D 1999
%J Nature Neuroscience
%K arm consolidation, dynamic, experiment, inference, kinematic. modularity, movement
%N 11
%P 1026-1031
%T Independent learning of internal models for kinematic and dynamic
control of reaching
%V 2
%X Psychophysical studies of reaching movements suggest that hand kinematics
are learned from errors in extent and direction in an extrinsic coordinate
system, whereas dynamics are learned from proprioceptive errors in
an intrinsic coordinate system. We examined consolidation and interference
to determine if these two forms of learning were independent. Learning
and consolidation of two novel transformations, a rotated spatial
reference frame and altered intersegmental dynamics, did not interfere
with each other and consolidated in parallel. Thus separate kinematic
and dynamic models were constructed simultaneously based on errors
computed in different coordinate frames, and possibly, in different
sensory modalities, using separate working-memory systems. These
results suggest that computational approaches to motor learning should
include two separate performance errors rather than one.
@article{Krakauer1999,
abstract = {Psychophysical studies of reaching movements suggest that hand kinematics
are learned from errors in extent and direction in an extrinsic coordinate
system, whereas dynamics are learned from proprioceptive errors in
an intrinsic coordinate system. We examined consolidation and interference
to determine if these two forms of learning were independent. Learning
and consolidation of two novel transformations, a rotated spatial
reference frame and altered intersegmental dynamics, did not interfere
with each other and consolidated in parallel. Thus separate kinematic
and dynamic models were constructed simultaneously based on errors
computed in different coordinate frames, and possibly, in different
sensory modalities, using separate working-memory systems. These
results suggest that computational approaches to motor learning should
include two separate performance errors rather than one.},
added-at = {2009-06-26T15:25:19.000+0200},
author = {Krakauer, John W. and Ghilardi, Maria-Felice and Ghez, Claude},
biburl = {https://www.bibsonomy.org/bibtex/23fe5bbcc615d996ce7364c533b09d4aa/butz},
comment = {Versuchspersonen mussten eine neue Kinematik oder Dynamik lernen.
Obwohl sowohl kinematik als auch dynamik beim lernen durch interferent
gestört werden, kann gleichzeitig oder nach ein andere eine neue
Kinematik oder Dynamik gelernt werden. Experimentiert wurde mit Zielbewegungen
des Armes. Diese beiden Prozesse sind demnach unabhängug.},
description = {diverse cognitive systems bib},
interhash = {dfccfe052e86575838ce863b4f61fd93},
intrahash = {3fe5bbcc615d996ce7364c533b09d4aa},
journal = {Nature Neuroscience},
keywords = {arm consolidation, dynamic, experiment, inference, kinematic. modularity, movement},
number = 11,
owner = {martin},
pages = {1026-1031},
timestamp = {2009-06-26T15:25:42.000+0200},
title = {Independent learning of internal models for kinematic and dynamic
control of reaching},
volume = 2,
year = 1999
}