Are Sluggish Cognitive Tempo and Daytime Sleepiness Distinct Constructs?
Are Sluggish Cognitive Tempo and Daytime Sleepiness Distinct Constructs?
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DOI：
10.1037/a0036276
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发表时间：
2014-06-01
影响因子：
3.6
通讯作者：
Luebbe, Aaron M.
中科院分区：
文献类型：
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作者：
Langberg, Joshua M.;Becker, Stephen P.;Luebbe, Aaron M.
认知节奏缓慢 (SCT) 和白天嗜睡在注意力缺陷/多动障碍 (ADHD) 患者中都很常见。 SCT 的疲劳和昏睡方面与白天嗜睡的人经常表现出的行为之间似乎有相当大的重叠。然而，没有研究检验这些结构重叠的程度以及它们在经验上是否不同。在研究 1 中，对 768 名大学生样本进行了巴克利成人多动症评定量表 IV (BAARS-IV) 的 SCT 子量表和 Epworth 嗜睡量表 (ESS) 的验证性因素分析。结果表明，SCT 和白天嗜睡表现出相当大的重叠，但在经验上是不同的。在研究 2 中，我们研究了 SCT 和白天嗜睡之间的关系，以及共病 SCT 和嗜睡对 58 名被严格诊断为 ADHD 的大学生的功能的影响。研究 1 和研究 2 的回归分析表明，SCT 预测的日间嗜睡程度高于 ADHD、焦虑和抑郁症状。这 2 个结构显着相关 (r = .51)，其中 SCT 疲倦和嗜睡项目与白天嗜睡之间的相关性最高。患有 ADHD + SCT 和白天嗜睡的大学生比诊断为 ADHD 没有 SCT 或白天嗜睡的大学生受到的损害明显更大。总之，这些结果填补了文献中的一个重要空白，证实 SCT 与白天嗜睡有重叠，但在经验上不同于白天嗜睡，并证明 SCT 和白天嗜睡与患有 ADHD 的大学生的功能相关。
Sluggish cognitive tempo (SCT) and daytime sleepiness are both common in individuals with attention-deficit/hyperactivity disorder (ADHD). There appears to be considerable overlap between the tired and lethargic aspects of SCT and behaviors frequently exhibited by individuals with daytime sleepiness. However, no studies have examined the degree to which these constructs overlap and whether or not they are empirically distinct. In Study 1, a confirmatory factor analysis with the SCT subscale of the Barkley Adult ADHD Rating Scale-IV (BAARS-IV) and the Epworth Sleepiness Scale (ESS) was conducted in a sample of 768 college students. Results demonstrated that SCT and daytime sleepiness exhibit considerable overlap but are empirically distinct. In Study 2, we examined the relation between SCT and daytime sleepiness and also the impact of comorbid SCT and sleepiness on the functioning of 58 college students rigorously diagnosed with ADHD. Regression analyses in both Study 1 and Study 2 showed that SCT predicts daytime sleepiness above and beyond symptoms of ADHD, anxiety, and depression. The 2 constructs were significantly related (r = .51), with the highest correlations occurring between the SCT tired and lethargic items with daytime sleepiness. College students with ADHD + SCT and daytime sleepiness were significantly more impaired than college students diagnosed with ADHD without SCT or daytime sleepiness. Together, these results fill an important gap in the literature by confirming SCT to be overlapping but empirically distinct from daytime sleepiness and demonstrating that SCT and daytime sleepiness are associated with functioning in college students with ADHD.