The influence of the dynamic transformation of a sliding lever on aiming errors
The influence of the dynamic transformation of a sliding lever on aiming errors
复制标题
滑动杆动态变换对瞄准误差的影响
DOI:
10.1016/j.neuroscience.2012.01.035
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发表时间:
--
期刊:
影响因子:
3.3
通讯作者:
Sülzenbrück
中科院分区:
文献类型:
--
作者:
Sülzenbrück
Human movements are quickly adjusted to variations of inertial load. However, this adjustment does not always imply a full compensation, so that kinematic movement characteristics vary. The present experiment served to explore the consequences of a complex dynamic transformation, implemented by a sliding first-order lever, on the endpoint distributions of goal-directed movements. Whereas the endpoint distributions were clearly affected by the inertial anisotropy of the arm, there was no effect of the dynamic transformation of the lever, neither on the parameters of endpoint distributions nor on the covariations of endpoints of successive movements (error propagation). However, when the lever was used, the effect of the inertial anisotropy of the arm on movement amplitudes was reduced, accompanied by a longer movement time overall, in particular for movements with higher inertial load of the arm. These observations suggest an interaction of the use of internal models and impedance control in the presence of variable inertial loads. Most likely the influence of the dynamic transformation of the sliding lever is absorbed by increased joint impedance, which also reduces the influence of the inertial anisotropy of the arm which otherwise is (incompletely) compensated based on an internal model of the dynamic transformation of the arm.
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DOI:
10.1152/jn.00946.2001
发表时间:
2002
期刊:
Journal of neurophysiology.
影响因子:
--
作者:
Pfann,KerstinD;Corcos,DanielM;Moore,CharityG;Hasan,Ziaul
通讯作者:
Hasan,Ziaul
影响因子:
2
作者:
J. Hermsdörfer;C. Marquardt;J. Philipp;A. Zierdt;Dennis A. Nowak;Stefan Glasauer;Norbert Mai
通讯作者:
Norbert Mai
影响因子:
2.7
作者:
BOCK, O
通讯作者:
BOCK, O
影响因子:
2
作者:
Vindras, P;Viviani, P
通讯作者:
Viviani, P
影响因子:
2
作者:
F. Lestienne
通讯作者:
F. Lestienne