Timing the selection of information during rhythmic catching
Timing the selection of information during rhythmic catching
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DOI：
10.1080/00222899909600994
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发表时间：
1999-09-01
影响因子：
1.4
通讯作者：
Beek, PJ
中科院分区：
文献类型：
--
作者：
Amazeen, EL;Amazeen, PG;Beek, PJ
接球需要在接球附近但足够早的情况下获得信息，以便进行前瞻性或纠正性控制。在本实验中，6 名参与者被要求连续投球和接球 1 分钟，同时佩戴液晶护目镜，以特定的时间间隔限制观看特定的时间。参与者可以通过改变相对于护目镜的投掷频率和相位来自由选择信息。视频分析显示，他们选择了投掷频率：与护目镜频率相匹配，并选择在球的最高点或最高点附近观看球。随着护目镜频率的增加，可以看到球轨迹的早期部分。尽管观看位置有所不同，但参与者选择在接球前平均 365 毫秒观看球。对手的轨迹的分析进一步表明，球的最高点和手开始接球的最终运动之间的时间间隔（M = 82 ms）不会随着投掷频率的变化而变化。作者得出的结论是，手的运动所施加的时间限制是选择接球信息的基础。
Catching a ball requires that information be available close to the catch but early enough for prospective or corrective control. In the present experiment, 6 participants were asked to throw and catch it ball continuously for 1 min while wearing liquid-crystal goggles that restricted viewing to specific amounts of time at specific intervals. Participants were free to select the information by varying che frequency and phasing of throwing relative to the goggles. Video analysis revealed that they elected a frequency of throwing: that matched the goggle frequency and chose to view the ball at or around its zenith. Earlier portions of the ball's trajectory were viewed as the goggle frequency increased. Despite variations in the viewing location, participants elected to view the ball on average 365 ms before the catch. Analysis of the hand's trajectory further revealed that the time interval (M = 82 ms) between the ball's zenith and the initiation of the final motion of the hand toward the catch did not vary as a function of the frequency of throwing. The authors conclude that the timing constraints imposed by the hand's movement are the basis for the selection of information for catching.