EXPRESSIONS OF ASYMMETRIES AND ANCHORING IN BIMANUAL COORDINATION
EXPRESSIONS OF ASYMMETRIES AND ANCHORING IN BIMANUAL COORDINATION
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DOI：
10.1016/0167-9457(94)90027-2
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发表时间：
1994-02-01
影响因子：
2.1
通讯作者：
GOODMAN, D
中科院分区：
文献类型：
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作者：
BYBLOW, WD;CARSON, RG;GOODMAN, D
本研究探讨的贡献，固有的和偶然的动态资源，手动不对称，双手协调的动态。八个右撇子的女性受试者进行节奏运动的双手，在两种模式的协调（同相和反相），在自步速和频率缩放的条件。在同相（频率缩放）条件下，受试者被要求同步节拍器的每一个节拍与最大旋前或最大旋后。在反相（频率缩放）条件下，要求受试者将节拍器的每个节拍与最大向左偏移或最大向右偏移同步。随着起搏频率的增加，观察到从反相模式到同相模式的相变。过渡途径和时间过渡发作取决于是否点的最大旋前或最大旋后的左手或右手是一致的节拍器信号。在相位转换之后采用的协调模式（同相）主要是节拍器的每个节拍与最大旋前点同步的模式。一个初步的模型占这些数据。
The present study examined the contributions of inherent and incidental dynamical resources, and manual asymmetries, to the dynamics of bimanual coordination. Eight right-handed female subjects performed rhythmic movements of both hands, in two modes of coordination (in-phase and anti-phase), in self-paced and frequency-scaled conditions. In the in-phase (frequency-scaled) condition subjects were required to synchronize each beat of a metronome with either maximum pronation or maximum supination. In the anti-phase (frequency-scaled) condition subjects were required to synchronise each beat of the metronome with either maximum excursion to the left or maximum excursion to the right. Phase transitions from the anti-phase mode to the in-phase mode were observed as pacing frequency was increased. Transition pathways and times to transition onsets were dependent upon whether points of maximum pronation or maximum supination of the left or of the right hand were coincident with the metronome signal. The pattern of coordination (in-phase) adopted following phase transitions was predominantly that in which each beat of the metronome was synchronized with points of maximum pronation. A preliminary model accounting for these data is presented.