Fialho João V A P, Tresilian James R
Grupo de Estudos em Ciências do Movimento e da Saúde, Curso de Educação Física, Centro Universitário CESMAC, Rua Conêgo Machado, 918-Farol, Maceió-Al, 57051-160, Brazil.
Department of Psychology, The University of Warwick, Coventry, UK.
Exp Brain Res. 2017 Apr;235(4):1257-1268. doi: 10.1007/s00221-017-4895-6. Epub 2017 Feb 14.
When performing a rapid manual interception, targets moving under constant motion are often intercepted with greater accuracy when compared to targets moving under accelerated motion. Usually, accelerated targets are timed too late and decelerating ones too early. The present experiment sought to investigate whether these differences in performance when intercepting targets moving under constant and accelerated motions change after a short period of practice. The task involved striking targets that moved along a straight track by moving forward a manipulandum that moved along a slide perpendicular to the target's motion. Participants were allocated to one of the three experimental groups, defined according to the type of motion of the moving targets: constant speed, constant acceleration, and constant deceleration. Results showed that after some practice participants were able to intercept (positive and negative) accelerating moving targets as accurately as constant speed targets. These results suggest that people might be able to learn how to intercept accelerating targets, corroborating the results of some recent studies.
在进行快速手动拦截时，与加速运动的目标相比，以恒定速度运动的目标通常能被更准确地拦截。通常，对加速目标的计时过晚，而对减速目标的计时过早。本实验旨在研究在经过短时间练习后，拦截以恒定速度和加速运动的目标时，这些性能差异是否会发生变化。任务包括通过向前移动一个沿着垂直于目标运动方向的滑块移动的操作手柄，来击打沿直线轨道移动的目标。参与者被分配到三个实验组之一，这三个实验组根据移动目标的运动类型来定义：匀速、匀加速和匀减速。结果表明，经过一些练习后，参与者能够像拦截匀速目标一样准确地拦截（正向和负向）加速移动的目标。这些结果表明，人们可能能够学会如何拦截加速目标，这与最近一些研究的结果相佐证。
