Meerhoff L Rens A, De Poel Harjo J
Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, P.O. Box 196, 9700 AD Groningen, The Netherlands; School of Physical Education, Sport and Exercise Sciences, University of Otago, P.O. Box 56, Dunedin 9054, New Zealand.
Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, P.O. Box 196, 9700 AD Groningen, The Netherlands.
Hum Mov Sci. 2014 Jun;35:66-79. doi: 10.1016/j.humov.2014.04.003. Epub 2014 May 14.
In interactive sports, teammates and/or opponents mutually tune their behavior. Expert performance thus implies certain interactive abilities, which critically depend on perceptual coupling. To illustrate this assertion, we examined the coordination dynamics with asymmetric interaction of dyads performing a sports-related cyclical movement task. In pairs, basketball players performed lateral defensive slides in in-phase, until a cue prompted them to switch to antiphase coordination. We assessed how these switches were mediated by phase adaptations of each agent under bidirectional (i.e., agents facing one another) and unidirectional (i.e., one agent facing the back of the other) visual interaction conditions. This imposed asymmetry in visual coupling exemplified an imbalance in the interaction (or 'interact-ability') between two agents. The results concurred the asymmetric coupling: during the switch the agent facing the other adapted his phasing more than the other agent. Furthermore, also in the bidirectional condition the coupling revealed dyad-intrinsic asymmetries (e.g., related to implicit follower-leader strategies). Together, this illustrates that interpersonal coordination is characterized by asymmetric coupling between the agents, and highlights how mutual perception of pertinent information mediates interpersonal coordination. This study offered a first step towards analyzing interpersonal coordination dynamics in relation to 'interact-ability'.
在互动性运动中，队友和/或对手会相互调整他们的行为。因此，专业表现意味着具备一定的互动能力，而这严重依赖于感知耦合。为了说明这一观点，我们研究了进行与运动相关的周期性运动任务的二元组在不对称互动下的协调动态。篮球运动员两两一组，同步进行横向防守滑动，直到一个提示促使他们切换为反相协调。我们评估了在双向（即两人面对面）和单向（即一人面向另一人的背部）视觉互动条件下，这些切换是如何由每个参与者的相位适应来介导的。这种视觉耦合中的不对称体现了两个参与者之间互动（或“互动能力”）的不平衡。结果证实了不对称耦合：在切换过程中，面向对方的参与者比另一个参与者对其相位的调整更大。此外，在双向条件下，耦合也揭示了二元组固有的不对称性（例如，与隐含的跟随-领导策略有关）。总之，这表明人际协调的特点是参与者之间的不对称耦合，并突出了对相关信息的相互感知如何介导人际协调。这项研究为分析与“互动能力”相关的人际协调动态迈出了第一步。
