University of Alabama at Birmingham, USA.
J Atten Disord. 2013 Aug;17(6):510-8. doi: 10.1177/1087054711431456. Epub 2012 Feb 24.
Symptoms of sluggish cognitive tempo (SCT) are correlated with inattention and internalizing difficulties. The purpose of the present study was to determine whether symptoms of SCT reflect comorbid internalizing disorder with ADHD or a separate syndrome.
Using a clinical sample of youth evaluated for behavioral and learning difficulties (N = 73), this study examined whether SCT remains associated with symptoms of ADHD after accounting for comorbid symptoms of anxiety and depression reported by children and parents.
SCT symptoms were correlated with inattention and parent reports of child depression, but not with parent-reported anxiety or child reports of internalizing problems. Inattention (in the absence of hyperactivity/impulsivity) remained uniquely associated with SCT even after accounting for internalizing problems.
The findings confirm SCT as a correlate of inattention and support its construct validity as separate from comorbid internalizing problems. Further research on the clinical utility of SCT is needed.
呆滞认知节奏（SCT）的症状与注意力不集中和内化困难有关。本研究的目的是确定 SCT 的症状是否反映了 ADHD 伴发的内化障碍，还是一个单独的综合征。
本研究使用了一组因行为和学习困难而接受评估的青少年临床样本（N=73），考察了在考虑到儿童和家长报告的焦虑和抑郁共病症状后，SCT 是否仍然与 ADHD 的症状相关。
SCT 症状与注意力不集中以及父母报告的儿童抑郁相关，但与父母报告的焦虑或儿童报告的内化问题无关。即使考虑到内化问题，注意力不集中（无多动/冲动）仍与 SCT 有独特的相关性。
研究结果证实了 SCT 与注意力不集中有关，并支持了其与共病内化问题的结构效度。需要进一步研究 SCT 的临床实用性。
