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The Head Tracks and Gaze Predicts: How the World’s Best Batters Hit a Ball

机译:头曲目和凝视预言:世界上最好的打者如何击球

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摘要

Hitters in fast ball-sports do not align their gaze with the ball throughout ball-flight; rather, they use predictive eye movement strategies that contribute towards their level of interceptive skill. Existing studies claim that (i) baseball and cricket batters cannot track the ball because it moves too quickly to be tracked by the eyes, and that consequently (ii) batters do not – and possibly cannot – watch the ball at the moment they hit it. However, to date no studies have examined the gaze of truly elite batters. We examined the eye and head movements of two of the world’s best cricket batters and found both claims do not apply to these batters. Remarkably, the batters coupled the rotation of their head to the movement of the ball, ensuring the ball remained in a consistent direction relative to their head. To this end, the ball could be followed if the batters simply moved their head and kept their eyes still. Instead of doing so, we show the elite batters used distinctive eye movement strategies, usually relying on two predictive saccades to anticipate (i) the location of ball-bounce, and (ii) the location of bat-ball contact, ensuring they could direct their gaze towards the ball as they hit it. These specific head and eye movement strategies play important functional roles in contributing towards interceptive expertise.
机译:快速球运动中的击球手不会在整个飞行过程中将视线对准球。相反,他们使用预测性眼动策略来提高他们的拦截技能水平。现有研究声称(i)棒球和板球击球手无法跟踪球,因为它移动得太快而无法被眼睛跟踪,因此(ii)击球手在击打球的那一刻就不能(也可能无法)看球。但是,迄今为止,还没有研究检查真正击球手的视线。我们检查了世界上两个最好的板球击球手的眼球和头部运动,发现这两种说法均不适用于这些击球手。值得注意的是,击球手将其头部的旋转与球的运动联系在一起,从而确保球相对于其头部保持一致的方向。为此,如果击球手只是移动他们的头并使他们的眼睛静止不动,就可以跟随球。取而代之的是,我们展示了精英击球手使用了独特的眼球运动策略,通常依靠两个预测性扫视来预测(i)弹跳的位置和(ii)蝙蝠球接触的位置,以确保它们可以引导当他们击中球时,他们凝视着球。这些特定的头部和眼睛运动策略在促进拦截性专业知识方面发挥着重要的功能作用。

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