Saccadic eye movements in a high-speed bimanual stacking task: Changes of attentional control during learning and automatization
Saccadic eye movements in a high-speed bimanual stacking task: Changes of attentional control during learning and automatization
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DOI：
10.1167/11.7.9
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发表时间：
2011-01-01
影响因子：
1.8
通讯作者：
Schneider, Werner X.
中科院分区：
文献类型：
--
作者：
Foerster, Rebecca M.;Carbone, Elena;Schneider, Werner X.
在真实的世界中的扫视眼动控制的原理已经通过对诸如三明治或泡茶的自定进度的众所周知的任务的研究而导出。很少有人知道这些原则是否适用于高速感觉运动任务，以及它们如何受到学习和自动化的影响。在本研究中，右利手练习的速度叠加任务在连续14个日常训练课程，而他们的眼球运动被记录。快速堆叠是一种高速感觉运动任务，需要抓取、移动、旋转和放置物体。取得了以下主要成果。在整个练习过程中，眼睛引导手，通过积极的眼-手时间跨度来显示。此外，视觉信息被收集为随后的手动子动作，显示了积极的眼手单位跨度。随着自动化，眼-手时间跨度变短，但它增加时，纠正减少审判时间。此外，注视主要分配给右手的目标位置或右手中的物体。注视次数减少，而注视率保持不变。重要的是，所有参与者都在训练日以类似的扫描路径注视相同的任务相关位置，揭示了高速感觉运动任务自动化后的长期基于记忆的注意力控制模式。
Principles of saccadic eye movement control in the real world have been derived by the study of self-paced well-known tasks such as sandwich or tea making. Little is known whether these principles generalize to high-speed sensorimotor tasks and how they are affected by learning and automatization. In the present study, right-handers practiced the speed-stacking task in 14 consecutive daily training sessions, while their eye movements were recorded. Speed stacking is a high-speed sensorimotor task that requires grasping, moving, rotating, and placing of objects. The following main results emerged. Throughout practice, the eyes led the hands, displayed by a positive eye-hand time span. Moreover, visual information was gathered for the subsequent manual sub-action, displayed by a positive eye-hand unit span. With automatization, the eye-hand time span became shorter, yet it increased when corrected by the decreasing trial duration. In addition, fixations were mainly allocated to the goal positions of the right hand or objects in the right hand. The number of fixations decreased while the fixation rate remained constant. Importantly, all participants fixated on the same task-relevant locations in a similar scan path across training days, revealing a long-term memory-based mode of attention control after automatization of a highspeed sensorimotor task.