A longitudinal study of development and disorder of joint attention in infancy

共同关注的参数包括多种行为，对开发时间和开发的连续性尚未形成统一的看法。这些基本问题源于各种共同注意行为的本源性与个体性的不一致性。因此，本研究通过2000人大样本的交叉和跟踪调查，试图在共同关注的发展时期进行标准化。本研究正在继续进行后续调查，增加标本。此外，通过阐明正常的发育过程，为不可避免地存在发育迟缓和发育障碍的婴儿开辟了筛查之路。最后，对发育障碍筛查和治疗中出现的各种问题进行了讨论。关于更具体地处理这些问题的评论，请参见Ohagami(2002), Kuroki & Ohgami(2003), Saita & Ohagami（2003）。

Parameters of joint attention includes many kind of behaviors, and those development time and the continuousness of development have not arrived at united opinions. These basic problems come from the inconsistency of the origin and the individuality in various joint attention behaviors.Therefore, the standardization at the development time of joint attention was attempted in this research through the crossing and the follow up investigation by a large specimen of 2000 people. This research is continuing the follow up investigation, increasing the specimen.Moreover, the road of screening of the infant who inevitably has the delay and the disorder of its development is opened by clarifying a normal development process. Then, the discussion of various problems which came round in the screening and treatment of the developmental disorder was added at the end.For reviews dealing more specifically with these issues, see Ohagami(2002), Kuroki & Ohgami(2003), Saita & Ohagami (2003).