Vision adds to haptics when dyads perform a whole-body joint balance task
Vision adds to haptics when dyads perform a whole-body joint balance task
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DOI：
10.1007/s00221-017-4952-1
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发表时间：
2017-07-01
影响因子：
2
通讯作者：
Zentgraf, Karen
中科院分区：
文献类型：
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作者：
Eils, Eric;Canal-Bruland, Rouwen;Zentgraf, Karen
当两个或更多人的目标是产生联合行动结果时，他们需要在空间和时间上协调各自的行动。据报道，成功的联合行动表现尤其取决于向联合行动者提供的视觉和体感信息。这项研究调查了当两人执行全身关节平衡任务时，视觉信息的系统操作是否以及如何调节实时关节动作。为此，我们引入了联合行动板（JAB），合作伙伴在三种视觉条件下共同转移他们在板上的重量，引导球穿过迷宫进入虚拟洞：（1）追随者既无法看到领导者，也无法看到迷宫； (2) 追随者无法看到迷宫，但只能看到领导者； (3) 追随者可以完全视觉访问领导者和迷宫。联合行动表现以迷宫任务的完成时间来衡量；通过对双方运动行为的运动学分析来检查人际协调。我们预测，系统地将视觉添加到可用的触觉信息中将导致联合性能的显着提高，并且领导者将根据这些条件改变他们的协调行为。结果表明，在触觉中添加视觉信息可以提高联合平衡任务中领导者-追随者关系中的联合行动表现。此外，人际协调行为（即运动的摇摆范围、合作伙伴身体之间的时间滞后等）会根据共同执行的任务中合作伙伴之间提供的视觉信息而变化。
When two or more people aim to produce joint action outcomes they need to coordinate their individual actions in space and time. Successful joint action performance has been reported to depend, among others, on visual and somatosensory information provided to the joint actors. This study investigated whether and how the systematic manipulation of visual information modulates real-time joint action when dyads performed a whole-body joint balance task. To this end, we introduced the Joint Action Board (JAB) where partners guided a ball through a maze towards a virtual hole by jointly shifting their weight on the board under three visual conditions: (1) the Follower had neither visual access to the Leader nor to the maze; (2) the Follower had no visual access to the maze but to the Leader; (3) the Follower had full visual access to both the Leader and to the maze. Joint action performance was measured as completion time of the maze task; interpersonal coordination was examined by means of kinematic analyses of both partners' motor behaviour. We predicted that systematically adding visual to the available haptic information would result in a significant increase in joint performance and that Leaders would change their coordination behavior depending on these conditions. Results showed that adding visual information to haptics led to an increase in joint action performance in a Leader-Follower relationship in a joint balance task. In addition, interpersonal coordination behavior (i.e. sway range of motion, time-lag between partner's bodies etc.) changed dependent on the provided visual information between partners in the jointly executed task.