Heuer H, Klein W
Institut für Arbeitsphysiologie an der Universität Dortmund, Ardeystrasse 67, D-44139 Dortmund, Germany.
Acta Psychol (Amst). 2001 Jan;106(1-2):23-49. doi: 10.1016/s0001-6918(00)00025-1.
We explored the effects of eccentric head positions on rapid rotations of a handle-bar in a modified randomization task. Subjects had to generate a random sequence of leftward and rightward handle-bar rotations; each pre-selected rotation was produced in response to a visual signal as rapidly as possible. Eccentric head positions induced a bias in that handle-bar rotations in the direction of the eccentric head position were chosen more frequently than handle-bar rotations in the opposite direction. This is consistent with previous evidence on a spatial coupling. In contrast to response selection, response initiation was not affected by eccentric head positions. The kinematic characteristics, however, differed: rotations in the direction of the eccentric head position were of larger amplitude and longer duration than rotations in the opposite direction. This difference may have been secondary to a difference in the start positions of the handle-bar, which were shifted in the direction opposite to the eccentric head position.
我们在一项改良的随机任务中探究了偏心头部位置对车把快速旋转的影响。受试者必须生成车把向左和向右旋转的随机序列；每个预先选定的旋转都要尽可能快地响应视觉信号产生。偏心头部位置引发了一种偏向，即车把向偏心头部位置方向的旋转比向相反方向的旋转被选择得更频繁。这与先前关于空间耦合的证据一致。与反应选择不同，反应启动不受偏心头部位置的影响。然而，运动学特征有所不同：向偏心头部位置方向的旋转比向相反方向的旋转幅度更大、持续时间更长。这种差异可能是由于车把起始位置的差异所致，车把起始位置在与偏心头部位置相反的方向上发生了偏移。
