Evidence for a generic interceptive strategy
Evidence for a generic interceptive strategy
复制标题
通用拦截策略的证据
DOI：
10.3758/pp.70.1.145
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
T. Sugar
中科院分区：
文献类型：
--
作者：
D. Shaffer;M. McBeath;Scott M Krauchunas;T. Sugar
在目前的工作中，我们首先阐明拦截等控制任务中瞬时光学角度的更精确定义。然后，我们测试了两种用于捕捉飞球的拦截策略如何解释人类捕捉飞盘的行为。第一个策略是保持球的图像沿着线性光学轨迹（LOT）。第二个是保持垂直光学球速度减小，同时保持恒定的横向光学速度。我们发现 LOT 平均占光学飞盘运动方差的 96% 以上，而垂直和横向光学速度的维持是随机的。这项工作证实了跨拦截任务使用的通用拦截策略，扩展到复杂的目标轨迹。
In the present work, we first clarify a more precise definition of instantaneous optical angles in control tasks such as interception. We then test how well two interceptive strategies that have been proposed for catching fly balls account for human Frisbee-catching behavior. The first strategy is to maintain the ball’s image along a linear optical trajectory (LOT). The second is to keep vertical optical ball velocity decreasing while maintaining constant lateral optical velocity. We found that an LOT accounted for an average of over 96% of the variance in optical Frisbee movement, while maintenance of vertical and lateral optical velocities was random. This work confirms a common interception strategy used across interceptive tasks, extending to complex target trajectories.