本实验对中、轻度智力落后儿童在形状知觉方面的特点进行了逐层分析，结果表明：智力落后儿童在形状知觉的各层次上均存在困难，其实质是认知加工上的笼统粗略，反映出其神经功能或器官上的损伤；中度智力落后与轻度落后儿童之间存在一定的差异；在教学训练上，应重视手肌动作协调配合的训练，并注意与心理品质的培养有机结合起来 The experiment analyzes the characteristics of shape-perception of children with mental retardation by level-by-layer analysis. The results show that: children with mental retardation have difficulties in all levels of shape perception, and their essence is generally rough in cognitive processing, Reflecting the neurological function or organ damage; there is a certain difference between moderate mental retardation and mildly backward children; in teaching and training, should pay attention to coordination of hand muscle exercises training, and pay attention to the cultivation of mental quality organic Combined