通过对操作反应时的研究，表明作高的过程中存在表象旋转现象．这提示我们，在钝角边偏离正位时，作高成绩下降可能是表象旋转所致． Through the study of the operational response, it is shown that there is phenomenon rotation in the process of making high. This suggests that, when the obtuse edge deviated from the right position, the decline in high performance may be caused by the rotation of the representation.