Working memory impairments in children with attention-deficit hyperactivity disorder with and without comorbid language learning disorders
Working memory impairments in children with attention-deficit hyperactivity disorder with and without comorbid language learning disorders
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DOI：
10.1080/13803390500205700
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发表时间：
2006-10-01
影响因子：
2.2
通讯作者：
Tannock, Rosemary
中科院分区：
文献类型：
--
作者：
Martinussen, Rhonda;Tannock, Rosemary
我们的目的是检查是否注意缺陷多动障碍（ADHD）的儿童受损的一个或多个组成部分的工作记忆（WM）独立的共病语言学习障碍，以及WM损伤是否更强烈地相关的症状注意力不集中的症状，而不是多动冲动的症状。四组儿童参与：ADHD（n = 62）; ADHD+RD/LI（n = 32）; RD/LI（n = 15）;和典型发育对照组（n = 34）。四个简单而简短的措施，WM不同的方式（词汇，言语，视觉空间）和处理需求（临时存储与操纵信息）。没有共病语言学习障碍的ADHD儿童表现出视觉空间存储和言语和视觉空间中央执行（C.E.）独立于共病精神障碍的功能。患有语言学习障碍的儿童，无论是否患有多动症，都表现出言语和空间存储以及C. E. WM的域。注意力不集中的症状，而不是多动/冲动的症状，预测了口头和视觉空间C.E.的表现。独立于年龄、言语认知能力、阅读和语言表现进行测量。研究结果与涉及多动症神经心理障碍的数据一致。维度结果也与先前的研究一致，表明神经心理障碍与注意力不集中症状维度的相关性比与多动-冲动维度的相关性更强。
Our objectives were to examine whether children with attention-deficit hyperactivity disorder (ADHD) are impaired on one or more components of working memory (WM) independent of comorbid language learning disorders, and whether WM impairments are more strongly related to symptoms of inattention than to symptoms of hyperactivity-impulsivity. Four groups of children participated: ADHD (n = 62); ADHD+RD/LI (n = 32); RD/LI (n = 15); and a typically developing comparison group (n = 34). Four simple and brief measures of WM were used that varied in modality (auditory-verbal; visual-spatial) and processing demands (temporary storage versus manipulation of information). Children with ADHD without comorbid language learning disorders exhibited deficits in visual-spatial storage and verbal and visual-spatial central executive (C.E.) functions that were independent of comorbid psychiatric disorders. Children with language learning disorders, regardless of comorbidity with ADHD, exhibited impairments in both verbal and spatial storage as well as C.E. domains of WM. Symptoms of inattention, but not symptoms of hyperactivity/impulsivity, predicted performance on verbal and visual-spatial C.E. measures independent of age, verbal cognitive ability, and reading and language performance. Findings are consistent with data implicating neuropsychological impairments in ADHD. The dimensional results are also consistent with prior research demonstrating the neuropsychological impairments are more strongly associated with the inattention symptom dimension than with the hyperactive-impulsive dimension.