Ladavas E, Moscovitch M
J Exp Psychol Hum Percept Perform. 1984 Apr;10(2):205-15. doi: 10.1037//0096-1523.10.2.205.
Four experiments were conducted to determine the effects of misaligning egocentric and environmental frames of reference on spatial S-R compatibility effects. In Experiments 1 and 3, subjects looked at two lights that were aligned horizontally, one each on either side of the body midline. They held their head upright or tilted 90 degrees to the left or right. In the upright condition the hands were uncrossed and rested opposite the lights (frames of reference aligned), whereas in the head tilt condition the hands were either crossed or uncrossed but positioned perpendicular to the lights (frames of reference not aligned). Manual choice reaction times to the lights produced spatial S-R compatibility effects that were as large when the frames of reference were aligned as when they were not. In Experiments 2 and 4, which also used upright and tilted conditions, we found generally similar results when the lights were displayed vertically and the hands disposed horizontally. The results indicate that under conditions of head rotation and with stimulus and response arrays perpendicular to each other, spatial S-R compatibility effects still occur. By taking into account both frames of reference, the subject classifies the stimuli as left or right whether they are horizontally or vertically disposed and maps them onto the responding hand, thereby producing the observed compatibility effects.
进行了四项实验，以确定自我中心和环境参照系的错位对空间刺激-反应兼容性效应的影响。在实验1和实验3中，受试者观察水平对齐的两盏灯，身体中线两侧各有一盏。他们保持头部直立，或者向左或向右侧倾斜90度。在直立状态下，双手不交叉，放在与灯光相对的位置（参照系对齐），而在头部倾斜状态下，双手要么交叉要么不交叉，但位置与灯光垂直（参照系未对齐）。对灯光的手动选择反应时间产生了空间刺激-反应兼容性效应，当参照系对齐时和未对齐时的效应一样大。在同样使用直立和倾斜条件的实验2和实验4中，当灯光垂直显示且双手水平放置时，我们发现了大致相似的结果。结果表明，在头部旋转且刺激和反应阵列相互垂直的条件下，空间刺激-反应兼容性效应仍然会出现。通过综合考虑两个参照系，受试者将刺激分类为左或右，无论它们是水平还是垂直放置，并将它们映射到做出反应的手上，从而产生观察到的兼容性效应。
