Experimentelle Untersuchungen zur bimanuellen Koordination als transiente Kopplung bei der Richtungsspezifikation
type: CreativeWork
description: The accurate execution of bimanual movements is important for almost all work. At the same time, there is only a limited amount of appropriate and possible combinations. Limitations arise from the task itself, but the human movement system also causes limitations. They might be due to its mechanical properties or result from central nervous structures that control movement. As a matter-of-fact some movement combinations are impossible to execute, some are difficult, whereas others are easily and accurately executable. Therefore, it is necessary to take limitations and preferences of the human movement system into account when ergonomically designing a workplace. Spijkers and Heuer (1995) developed the hypothesis of transient coupling during the specification of movement parameters to explain (some) interference phenomena that can occur during bimanual movements. It states, that distortions of movement execution (may) result from mutual cross-talk between the two processes that specify the movement parameters. The cross-talk, so the basic assumption, arises from their initial coupling that dissipates when different parameter values are specified but is preserved in case of same values. This leads to the following predictions: First, specification of different values takes more time, because decoupling is necessary. Second, the time courses of the specification processes exhibit mutual assimilation that is strong in the beginning and weakens as specification proceeds and coupling dissipates. Third, the coupling causes the specification processes (and the respective movement characteristics) to covary. Hence, covariation should be observable in case of same values, in case of different values it is only present if specification still is incomplete, because coupling has not yet been abolished. The present study addressed whether the transient coupling hypothesis also holds for the specification of movement direction after it had already been proved for movement amplitud…
abstract: The accurate execution of bimanual movements is important for almost all work. At the same time, there is only a limited amount of appropriate and possible combinations. Limitations arise from the task itself, but the human movement system also causes limitations. They might be due to its mechanical properties or result from central nervous structures that control movement. As a matter-of-fact some movement combinations are impossible to execute, some are difficult, whereas others are easily and accurately executable. Therefore, it is necessary to take limitations and preferences of the human movement system into account when ergonomically designing a workplace. Spijkers and Heuer (1995) developed the hypothesis of transient coupling during the specification of movement parameters to explain (some) interference phenomena that can occur during bimanual movements. It states, that distortions of movement execution (may) result from mutual cross-talk between the two processes that specify the movement parameters. The cross-talk, so the basic assumption, arises from their initial coupling that dissipates when different parameter values are specified but is preserved in case of same values. This leads to the following predictions: First, specification of different values takes more time, because decoupling is necessary. Second, the time courses of the specification processes exhibit mutual assimilation that is strong in the beginning and weakens as specification proceeds and coupling dissipates. Third, the coupling causes the specification processes (and the respective movement characteristics) to covary. Hence, covariation should be observable in case of same values, in case of different values it is only present if specification still is incomplete, because coupling has not yet been abolished. The present study addressed whether the transient coupling hypothesis also holds for the specification of movement direction after it had already been proved for movement amplitud…
author: Steglich, Christoph
language: ger
keywords: info:eu-repo/classification/ddc/620, Ingenieurwissenschaften
date published: 2002
date modified: 2026-07-30T19:43:10Z
provider: RWTH Aachen University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Publikationsserver der RWTH Aachen University