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目的:考察听障儿童是否能够过度模仿及其内在机制.方法:23名听障儿童和23名健听儿童观察实验人员先后使用四个行为获取目标物,前三个行为与获取目标物无关,仅有第四个行为是获取目标物所必须的.主要观测儿童在多大程度上会模仿实验人员所使用的无关行为.结果:①实验组听障儿童比控制组听障儿童更多产生无关行为.②听障儿童模仿无关行为的总体数量仍低于健听儿童.结论:证实听障儿童能够过度模仿.但是,听障儿童对无关行为模仿的忠实程度总体上低于健听儿童,结果支持了过度模仿的社会动机假设.“,”Objective:The goal of this study was to investigate whether children with hearing impairments over-imitate and the undedying mechanism.Methods:23 children who each had either a cochlear implant(CI)or a hearing aid(HA)and 23 children with normal hearing observed an adult using three irrelevant actions and then one relevant action to achieve a desired outcome.The main dependent measure was the degree to which children reproduced the irrelevant actions.Re-sults:(1)Children with a CI or HA in the experimental group reproduced significantly more irrelevant actions than children in the baseline group;(2)Children with a CI or HA still reprnduced fewer irrelevant actions than the normal-hearing chil-dren.Conciusion:Children with a CI or HA exhibit overimitation.Moreover,children with a CI or HA display lower levels of imitative fidelity than normal-hearing children.The results support the social motivation hypothesis of overimition.