CONTRASTING COGNITIVE DEFICITS IN ATTENTION-DEFICIT HYPERACTIVITY DISORDER VERSUS READING-DISABILITY
CONTRASTING COGNITIVE DEFICITS IN ATTENTION-DEFICIT HYPERACTIVITY DISORDER VERSUS READING-DISABILITY
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DOI：
10.1037/0012-1649.29.3.511
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发表时间：
1993-05-01
影响因子：
4
通讯作者：
WELSH, MC
中科院分区：
文献类型：
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作者：
PENNINGTON, BF;GROISSER, D;WELSH, MC
我们比较了阅读障碍（RD）和注意缺陷多动障碍（ADHD）两种常见的和有时共病的发育障碍在两个认知领域，语音过程（PP）和执行功能（EF）。研究对象为70名学龄前男孩，采用2 (RD vs.无RD) x2 (ADHD vs.无ADHD) x2（域型）混合模型设计。2个RD组（RD-only和RD + ADHD）在PP综合评分上与对照组和仅ADHD组相比均显著受损，但在EF综合评分上表现正常。adhd组与RD组和对照组在EF综合评分上有显著差异。因此，在纯rd组和纯adhd组之间存在双重分离。共病组与单纯RD组相似，符合他们的ADHD症状继发于RD的假设。这些结果为PP与EF的可分离性提供了证据，也为RD与ADHD的共病提供了一种解释。
We compared 2 common and sometimes comorbid developmental disorders, reading disability (RD) and attention deficit hyperactivity disorder (ADHD), in 2 cognitive domains, phonological processes (PP) and executive functions (EF). Subjects were 70 boys of early school age, studied by means of a 2 (RD vs. no RD) x 2 (ADHD vs. no ADHD) X 2 (domain type) mixed-model design. The 2 RD groups (RD-only and RD plus ADHD) were significantly impaired compared with both the control and ADHD-only groups on a PP composite score but performed normally on the EF composite score. The ADHD-only group had an opposite profile and was significantly different from both RD groups and from controls on the EF composite score. Thus, there was a double-dissociation between the RD-only and ADHD-only groups. The comorbid group resembled the RD-only group, consistent with the hypothesis that their ADHD symptoms are secondary to RD. These results provide evidence for the separability of PP from EF, as well as one explanation for the comorbidity between RD and ADHD.