Response Time, Visual Search Strategy, and Anticipatory Skills in Volleyball Players
Response Time, Visual Search Strategy, and Anticipatory Skills in Volleyball Players
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DOI：
10.1155/2014/189268
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发表时间：
2014-01-01
影响因子：
1.9
通讯作者：
Squatrito, Salvatore
中科院分区：
文献类型：
--
作者：
Piras, Alessandro;Lobietti, Roberto;Squatrito, Salvatore
本研究旨在比较排球运动员在视觉任务中的表现。向参与者展示排球二传手进行进攻动作的视频，而他们的眼球运动则由头戴式视频眼动仪记录。参与者被要求通过按下两个键中的一个来预测二传手投掷的方向（向前或向后）。按键反应时间，反应准确性，和凝视行为进行了测量，从第一帧显示二传手的手球接触的参与者按下按钮。专家比新手更快，更准确地预测了设置的方向，当他们使用一种搜索策略时，显示出准确的预测，这种策略涉及更少的固定时间，以及花费更少的时间固定所有显示区域，他们从中提取关键信息进行判断。这些结果与专家的上级表现是由于他们能够有效地编码与任务相关的特定领域的信息的观点是一致的。
This paper aimed at comparing expert and novice volleyball players in a visuomotor task using realistic stimuli. Videos of a volleyball setter performing offensive action were presented to participants, while their eye movements were recorded by a head-mounted video based eye tracker. Participants were asked to foresee the direction (forward or backward) of the setter's toss by pressing one of two keys. Key-press response time, response accuracy, and gaze behaviour were measured from the first frame showing the setter's hand-ball contact to the button pressed by the participants. Experts were faster and more accurate in predicting the direction of the setting than novices, showing accurate predictions when they used a search strategy involving fewer fixations of longer duration, as well as spending less time in fixating all display areas from which they extract critical information for the judgment. These results are consistent with the view that superior performance in experts is due to their ability to efficiently encode domain-specific information that is relevant to the task.