The Effect of Volition on the Stability of Bimanual Coordination
The Effect of Volition on the Stability of Bimanual Coordination
复制标题
意志对双手协调稳定性的影响
作者：
C. Smethurst;R. Carson
摘要研究了被动执行行为的意图和坚持行为的意图对双手协调的时空特性的影响。参与者(N=30)被要求执行双手协调任务，该任务要求手腕持续有节奏地伸展-屈曲。通过听觉节拍器将运动频率从1.5赫兹增加到3.25赫兹，以25赫兹为增量。这项任务的进一步定义是，动作最初必须以规定的协调模式(同相或反相)进行，而参与者则采取两种不同的有意状态之一：如果模式变得不稳定，则保持规定的模式，或者如果模式开始改变，则不干预。只有在反相协调模式下进行的试验中才观察到与最初规定的模式不同的转变。研究发现，反相配位模式变得不稳定的时间不受有意状态的影响。此外，不干预设置导致切换到同相协调模式，而停留设置导致相位漂移。这些调查结果在双手协调的动态帐户框架内进行了讨论。
Abstract The authors investigated how the intention to passively perform a behavior and the intention to persist with a behavior impact upon the spatial and temporal properties of bimanual coordination. Participants (N = 30) were asked to perform a bimanual coordination task that demanded the continuous rhythmic extension-flexion of the wrists. The frequency of movement was scaled by an auditory metronome beat from 1.5 Hz, increasing to 3.25 Hz in 25-Hz increments. The task was further defined by the requirement that the movements be performed initially in a prescribed pattern of coordination (in-phase or antiphase) while the participants assumed one of two different intentional states: stay with the prescribed pattern should it become unstable or do not intervene should the pattern begin to change. Transitions away from the initially prescribed pattern were observed only in trials conducted in the antiphase mode of coordination. The time at which the antiphase pattern of coordination became unstable was not found to be influenced by the intentional state. In addition, the do-not-intervene set led to a switch to an in-phase pattern of coordination whereas the stay set led to phase wandering. Those findings are discussed within the framework of a dynamic account of bimanual coordination.
影响因子：
56.9
作者：
SCHONER, G;KELSO, JAS
通讯作者：
KELSO, JAS
学习和迁移的协调动态：集体和组成层面。
DOI：
10.1037//0096-1523.23.5.1454
发表时间：
1997
期刊：
Journal of experimental psychology. Human perception and performance
影响因子：
--
作者：
Zanone,PG;Kelso,JA
通讯作者：
Kelso,JA
行为吸引子与学习的演化：非平衡相变。
DOI：
10.1037//0096-1523.18.2.403
发表时间：
1992
期刊：
Journal of experimental psychology. Human perception and performance
影响因子：
--
作者：
Zanone,PG;Kelso,JA
通讯作者：
Kelso,JA