Research Institute of Science and Technology for Society, Japan Science and Technology Agency, Tokyo, Japan.
J Epidemiol. 2010;20 Suppl 2(Suppl 2):S397-403. doi: 10.2188/jea.je20100018. Epub 2010 Feb 23.
There are still a lot of unknown aspects about the childhood development of sociability which are based on neuroscientific basis. Purpose of the Japan Children's Study (JCS) was to verify the normal process of child development of sociability; the trajectory and factors related development of sociability, and to collect findings and integrate the knowledge to make the plan of long-term and large scale cohort study.
A child cohort study underway in Japan since 2005. There are the cohort study including a infant cohort study at age of 4 months to 30 months and a preschool cohort study at age of 5 years old to 8 years old. Questionnaires, direct observation of children and cognitive testing were performed.
In infant cohort study, 465 infants were recruited at 4 months and 367 children were followed up to 30 months, follow up rate was 78.9% and in the preschool cohort study, total 192 children (112 at 2005 and 80 at 2007) at age of 5 years old and 169 followed up to 6 years (follow up rate was 88.0%), and 79 children were followed up to 8 years old (follow up rate was 70.5%) old. Several new measurements to evaluate child sociability were developed. Some factors related to development of child sociability were found for example the 'praise' was related to child sociability in cohort study based on neuroscience findings.
Though the trajectory of child sociability development were not clarified, some significant factors related to development of sociability, and the basic findings to conduct a long-term and large scale cohort study were provided.
基于神经科学基础，儿童社交能力发展仍有许多未知方面。日本儿童研究（JCS）的目的是验证社交能力发展的正常过程；社交能力发展的轨迹和相关因素，并收集研究结果并整合知识，制定长期和大规模队列研究计划。
这是一项正在日本进行的儿童队列研究。该研究包括一项婴儿队列研究，研究对象为 4 个月至 30 个月大的婴儿，以及一项学前儿童队列研究，研究对象为 5 岁至 8 岁的儿童。研究采用问卷调查、儿童直接观察和认知测试等方法。
在婴儿队列研究中，招募了 465 名 4 个月大的婴儿，其中 367 名儿童随访至 30 个月，随访率为 78.9%；在学前儿童队列研究中，共有 192 名儿童（2005 年 112 名，2007 年 80 名）在 5 岁时入组，169 名儿童随访至 6 岁（随访率为 88.0%），79 名儿童随访至 8 岁（随访率为 70.5%）。研究开发了一些新的评估儿童社交能力的方法。发现了一些与儿童社交能力发展相关的因素，例如基于神经科学发现的“表扬”与儿童社交能力相关。
虽然儿童社交能力发展的轨迹尚不清楚，但发现了一些与社交能力发展相关的重要因素，并为开展长期和大规模队列研究提供了基础发现。
