Dissociation of grip/load-force coupling during a bimanual manipulative assignment

被引：22

作者：

Serrien, DJ ^{[1
]}

Wiesendanger, M ^{[1
]}

机构：

[1] Inselspital Bern, Dept Neurol, CH-3010 Bern, Switzerland

来源：

EXPERIMENTAL BRAIN RESEARCH | 2001年 / 136卷 / 03期

关键词：

interlimb coordination; grasping; precision grip; neural crosstalk;

D O I：

10.1007/s002210000620

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The aim of the present study was to examine interlimb interactions of grasping forces during a bimanual manipulative assignment that required the execution of a drawer-opening task with the left hand and an object-holding task with the right hand. Compared with the unimanual performance, the grip/load-force ratio of the object-holding task was shifted towards that of the simultaneously executed drawer-opening task. This shows that force parameterization of the dynamic activity interacted with that of the static activity. That the increased force ratio only involved modification of grip force, while load force was held constant, indicates a disruption of the commonly observed co-variation of both forces during a manipulative action. These data are consistent with the notion that the coordinative constraint between grip and load force is a flexible parameter.

引用

页码：417 / 420

页数：4

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