Objective:

Eveningness diurnal preference is common in psychiatric conditions, including attention-deficit/hyperactivity disorder (ADHD) and internalizing disorders. Little is known about how diurnal preference relates to sluggish cognitive tempo (SCT)—a distinct clinical construct associated with functional impairment—in clinical samples.

Method:

Adult outpatients (n = 65; 43 with ADHD, 22 with internalizing/adjustment disorders) self-reported on SCT symptoms (total symptoms; slow/daydreamy, sleepy/sluggish, and low initiation/persistence factors) and diurnal preference.

Results:

Greater eveningness was associated with overall SCT severity and sleepy/sluggish symptoms in the full sample. Relationships between eveningness and overall SCT severity and slow/daydreamy symptoms were stronger for those with internalizing/adjustment disorders compared to ADHD. The relationship between eveningness and sleepy/sluggish symptoms was uniform across groups.

Conclusion:

Findings suggest a potential role of eveningness preference in adult SCT presentation. Future studies should investigate underlying mechanisms linking these two constructs and the efficacy of circadian interventions in the treatment of SCT among adult outpatients.

中文翻译：

---

夜间偏好：将“迟缓”置于迟缓的认知时间中

 客观的：

夜间偏好在精神疾病中很常见，包括注意力缺陷/多动障碍（ADHD）和内化障碍。在临床样本中，人们对昼夜偏好与认知节奏迟缓（SCT）（一种与功能障碍相关的独特临床结构）的关系知之甚少。

 方法：

成人门诊患者（ n = 65；43 名患有多动症，22 名患有内化/适应障碍）自我报告 SCT 症状（全部症状；缓慢/白日梦、困倦/呆滞和低启动/持续因素）和昼夜偏好。

 结果：

在整个样本中，夜间时间较长与整体 SCT 严重程度和困倦/迟钝症状相关。与 ADHD 相比，患有内化/适应障碍的人的夜间活动与整体 SCT 严重程度和缓慢/白日梦症状之间的关系更强。夜间活动与困倦/呆滞症状之间的关系在各组中是一致的。

 结论：

研究结果表明夜间偏好在成人 SCT 表现中具有潜在作用。未来的研究应该调查连接这两种结构的潜在机制以及昼夜节律干预在成人门诊患者 SCT 治疗中的功效。