表象旋转加工子系统特性的初步研究

通过两个实验分别检测２０名飞行员和１０名老年被试及其相应控制组的表象旋转加工水平，旨在探讨表象旋转这一典型视觉空间认知加工中各子系统所表现出的可塑性和稳定性问题。研究结果表明，在参与表象旋转的三个主要加工子系统中，负责表象转换的子系统既可随系统训练而表现出功能增强的练习效应，也可随年老过程而发生功能衰减的年龄效应。相对而言，形状识别和确认两上子系统则受练习和年老因素影响较小。本研究提示，由于受大脑

PRELIMINARY STUDY ON THE PROPERTIES OF PROCESSINGSUBSYSTEMS IN IMAGE-ROTATION

The study tried to examine the cognitive plasticity and stability in processingsubsystems of image--rotation. Two experiment were conducted to test processinglevels of imagerotation in twenty pilots, ten elderly adults and their own controlsrespectively. The results indicated that among three main subsystems involved inimage--rotation, there were both a stronger practice effect and age effect that thecormsponding function was either improved with systematic training or decreased withaging in the shift subsystem of image--rotation. In contrast there were little effect ofpractice and age on the function of subsystems concerning shape--encoding andconfirmation in image--rotation. The study suggested that influenced by some hereditaryand intrinsic attributes of the brain's nervous anatomic structure, the shift subsystemshowed a higher cognitive Plasticity and susceptibility, while the property of the othertWo subsystems, however, relatively showed a cognitive stability of lower Plashcity.The implication was further discussed from the high--level visual processing theorydeveloped by Kosslyn.