Different strategies for using motion-in-depth information in catching
Different strategies for using motion-in-depth information in catching
复制标题
DOI：
10.1037/0096-1523.31.5.1004
复制
发表时间：
2005-10-01
影响因子：
2.1
通讯作者：
Sieffert, R
中科院分区：
文献类型：
--
作者：
Gray, R;Sieffert, R
以前关于接球的研究都有这样的局限性，即接球者仅限于手部的侧向运动。作者调查了在手部运动不受限制的更自然的情况下的捕捉行为。当参与者试图用变化的大小和/或变化的视差模拟一个接近的球时，手部的运动被跟踪。参与者使用了两种截击策略中的一种：(A)“截断”策略，即用传球时间(TTP)信息来指导手的深度移动，以便当球以较慢的速度靠近时，球被接在更靠前的位置；(B)“等待”策略，即手沿着一个与球的轨迹和速度保持不变的正面平行平面移动。线索分离和选择性适应操作表明，捕手对TTP和传中距离的估计是基于双目和单目信息的组合。
Previous studies on ball catching have had the limitation that the catcher was restricted to lateral hand movements. The authors investigated catching behavior in the more natural situation in which hand movements were unconstrained. Movements of the hand were tracked as participants tried to "catch" an approaching ball simulated with changing size and/or changing disparity. Participants used I of 2 distinct interception strategies: (a) a "cutting-off' strategy where time to passage (TTP) information was used to guide movements of the hand in depth such that the ball was caught farther in front of the face when the ball was approaching more slowly and (b) a "waiting" strategy where the hand was moved along a frontoparallel plane that was constant across ball trajectories and speeds. Cue dissociation and selective adaptation manipulations demonstrated that the catcher's estimates of TTP and crossing distance were based on a combination of binocular and monocular information.