Impact of motor skills on cognitive test results in very-low-birthweight children
Impact of motor skills on cognitive test results in very-low-birthweight children
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DOI：
10.1177/088307380401900502
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发表时间：
2004-05-01
影响因子：
1.9
通讯作者：
Dammann, O
中科院分区：
文献类型：
--
作者：
Losch, H;Dammann, O
经常用于评估极低出生体重儿童认知发展的标准化测试通常可以测量运动能力和认知技能。为了评估运动技能对幼儿园年龄极低出生体重儿童个体测试表现的影响，我们对 298 名极低出生体重儿童（其中包括严重残疾儿童）进行了因子分析。使用旨在测量注意力、语言技能、整体认知发展、视觉运动能力和记忆力的测试电池，我们在三个诊断亚组中的每一个中确定了两个因素：未受损儿童（n = 184）、笨拙儿童（n = 56）和脑瘫儿童（n = 33）。根据因素负荷的模式，我们将第一个因素解释为捕获语言和整体认知能力，而第二个因素似乎捕获运动能力。语言技能解释了个人测试结果总体差异的 49%，运动能力解释了 16%。在注意力缺陷的儿童（n = 25）中，出现了第三个因素。在这些孩子中，我们将第一个因素解释为捕捉语言或认知技能，第二个因素代表视觉运动技能，第三个因素解释为集中能力的量化指标。测试电池对受损和未受损儿童进行了相同的能力测试；然而，这些并不总是电池旨在测试的能力。未来的研究需要评估仅针对认知能力而非运动能力的因子评分是否可能是有用的结果变量。
Standardized tests that are frequently used to evaluate the cognitive development of very-low-birthweight children often appear to measure motor ability as well as cognitive skills. To estimate the impact of motor skills on individual test performance among very-low-birthweight children of kindergarten age, we employed factor analysis in a sample of 298 very-low-birthweight children that included severely disabled children. Using a test battery designed to measure concentration, language skills, overall cognitive development, visuomotor abilities, and memory, we identified two factors in each of three diagnostic subgroups: unimpaired children (n = 184), clumsy children (n = 56), and children with cerebral palsy (n = 33). Based on the pattern of factor loadings, we interpret the first factor as capturing language and overall cognitive abilities, whereas the second factor appears to capture motor abilities. Language skills explained 49% and motor abilities accounted for 16% of the overall variance of the individual test results. Among children with attention deficit (n = 25), a third factor emerged. In these children, we interpret the first factor as capturing language or cognitive skills, the second as representing visuomotor skills, and the third as a quantifier of the ability to concentrate. The test battery tested the same abilities in impaired and unimpaired children; however, these were not always the abilities that the battery aimed to test. Future studies need to evaluate whether factor scores only for cognitive but not motor abilities might be useful outcome variables.