智力落后儿童词汇语义记忆组织的实验研究

本研究采用类别概念例举法．对49名轻度智力落后儿童和49名智龄匹配的正常儿童以及22名实龄匹配的中度智力落后儿童进行了实验研究，旨在比较这三类儿童的心理词典中词的语义储存的区别。研究表明，轻度智力落后儿童与正常儿童的心理词典中词的语义储存有类似的组织结构．但在储存信息的数量上存在明显差异。轻度智力落后儿童的心理词典中储存同的组织较为松散，而且混杂了一些错误的信息；中度智力落后儿童储存有污的组织则更加松散，错误信息也更多，总之，正常儿童的心理词典中词的语义边界清晰，而智力落后儿童的语义边界模糊。

An Experimental Research of Semantic Memory Structure of Mentally Retarded Children

The experiment was carried out to study the difference of semantic processing between MR children and NR children.Performance on word association tasks by 49 children with mild MR was compared to that of 49 MA-matched NR children and 22 CA-matched Moderatlly MR children.The results suggest:The structure of semantic storage of mild MR children is similar to that of MA-matched NR children;the mental lexicon structure of mild MR children is more loose than that of the NR subjects,and contains some errors;Moderatlly MR children can also establish their own mental lexicon which is similer to that of CA-matched mild MR children in the form of storage,but the structure is more loose,and it has a great number of errors.