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Arch Clin Neuropsychol. 2011 Aug;26(5):425-33. doi: 10.1093/arclin/acr026. Epub 2011 May 25.
In previous studies, children with both Attention-Deficit Hyperactivity Disorder (ADHD) and a Reading Disorder were found to have more difficulties with processing speed, working memory, and timed as opposed to non-timed executive functioning (EF) measures when compared with those with either disorder alone. The current study found that older adolescents and adults with both disorders also had more difficulties on processing speed and working memory measures than individuals who only had ADHD. There were no differences among non-timed EF scores. These results add support to the premise that common underlying features may be contributing to the high co-morbidity between these disorders and associated cognitive weaknesses.
在以前的研究中，与仅有注意力缺陷多动障碍（ADHD）或阅读障碍的儿童相比，同时患有这两种疾病的儿童在处理速度、工作记忆和定时执行功能（EF）方面，相对于非定时执行功能，存在更多困难。本研究发现，同时患有这两种疾病的青少年和成年人在处理速度和工作记忆方面的难度也高于仅有 ADHD 的个体。在非定时 EF 评分方面没有差异。这些结果支持了这样一个前提，即共同的潜在特征可能是导致这些疾病之间高共病性和相关认知弱点的原因。
