An ethological study on behavioral development and learning disabilities for extremely-low-birthweight children.

极低出生体重儿童行为发展和学习障碍的行为学研究。

基本信息

批准号：
08610084
负责人：
KANAZAWA Tadahiro
金额：
$ 1.41万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

项目摘要

Our subjects were 153 extremely-low-birthweight (ELBW) children ranging in age from 6 to 9 years old and their 33 siblings as control. We observed their behaviors during testing using VTR camera and quantitatively analyzed VTR records with one-zero sampling method. The subjects were classified as follows : the mentally delayd (MD) group of 34 subjects (22.5%) whose IQs were equal to or less than 79, and the nondelayd group of 119 subjects (77.5%) whose IQs were al least 80. The MD group consisted of 23 mentally retarded children and 11 borderline children. Using the results of the Pupil Rating Scale, the nondelayd group was subdevided into the LD-Suspected (LD) group of 42 children (27.5%) and the group of 77 typically developing (TD) children (50.3%). ELBW children showed significantly lower scores in almost of psychological tests including WISC-R,Frostig's developmental test of visual perception, Bender Gestalt Test, and Draw-A-Man Test than control. However, scores of TD group were … More not different from control. LD and MD group were found to have more behavior problems than control. However, TD group were not different from control on the incidence of behavioral problems. These results suggests that prematurity might not influence cognitive ability and incidence of behavioral problems. We found valuable behavioral indices to predict handicaps of ELBW children. They cinsist of spontaneous verbalization, responsive verbalization, nodding, turn or shift with a swivel chair, time spent for solving Frostig test, and mean duration of gaze directed to a tester. For example, LD group showed shorter duration of gaze directed to a tester than TD and MD groups. This might reflect shorter span of attention in LD group. A discriminat function based on behavioral indices above mentioned correctly predicted the original classification of 83.3% of children in TD group, 50.0% in LD group, 72.7% MD group, and totally 72.0% of all cases. Correct assessment and effective intervention of LD was the most important task for ELBW children. Our study suggests that behavioral assessment could contribute to the correct prediction of handicaps including LD and Mental Delay of ELBW children. Less

我们的受试者是153个极低的次量级（ELBW）儿童，年龄从6至9岁，他们的33个兄弟姐妹作为对照。我们使用VTR摄像机在测试过程中观察了它们的行为，并使用一零采样方法进行了定量分析的VTR记录。这些受试者的智商为34名受试者（22.5％），其智商等于或小于79个受试者，而没有智商为119名受试者（77.5％）的智商（22.5％），其智商为80。使用学生评级量表的结果，将非延迟组细分为42名儿童（27.5％）的LD悬浮（LD）组，而77组通常发育（TD）儿童（50.3％）。 ELBW儿童在几乎包括WISC-R，Frostig的视觉感知，Bender Gestalt测试和绘图测试在内的心理测试中的分数明显低于对照。但是，TD组的得分与对照组更为差异。发现LD和MD组的行为问题多于对照。但是，TD组与对行为问题事件的控制没有什么不同。这些结果表明，早产可能不会影响行为问题的认知能力和发生率。我们发现有价值的行为指数可以预测ELBW儿童的障碍。他们用旋转椅子的言语言语，反应式言语，点头，转弯或转移，用于解决弗罗斯特格测试的时间以及针对测试人员的平均凝视持续时间。例如，LD组显示了针对测试仪的持续时间比TD和MD组较短。这可能反映出LD组的注意力较短。基于上述行为指数的歧视函数正确地预测了TD组83.3％的儿童的原始分类，LD组为50.0％，MD组72.7％，所有病例的72.0％。对于ELBW儿童来说，正确评估和有效干预是最重要的任务。我们的研究表明，行为评估可以有助于对障碍的正确预测，包括LD和ELBW儿童的精神延迟。较少的