关键词: 广泛性发育障碍, 精神发育迟滞, 神经心理发育

Abstract: 【Objective】 To study the difference of neuropsychological development between pervasive developmental disorder (PDD) and mental retardation (MR) children. 【Methods】 All patients first diagnosed as PDD or MR in psychological counseling clinic of Children's Hospital of Fudan University during Jan 2003 to Jan 2009 without any intervention before were enrolled. The Psycho-educational Profile (PEP) test was administered to all the children. According to the developmental age of PEP result, all the children were divided into three groups: 0~12 months, 13~36 months, 37~72 months. 【Results】 There were 341 PDD children and 209 MR children in the research. In the 0~12 months group, MR children got higher scores in imitation and cognitive (verbal) than PDD children. In the 13~36 months group, MR children got higher scores in all the fields than PDD children, including imitation, perception, gross motor, fine motor, eye-hand integration, cognitive (performance) and cognitive (verbal). In the 37~72 months group, MR children got higher scores than PDD children only in imitation. 【Conclusion】 1)Without any treatment, the PDD children show totally delay in all the fields than the MR children in the 13~36 months developmental age. 2) The ability of imitation is always lower in PDD child than MR children in the developmental age 0~72 months without any intervention.

Key words: pervasive developmental disorder, mental retardation, development