Previously, we have shown that neuromodulators are important factors in stress-induced emotional disorders, such as depression, for example, serotonin is the major substance for depression. Many psychological studies have proved that depression is due to insecure attachment. In addition, sleep is a major symptom of depression. Furthermore, serotonin is the substrate for both sleep and depression. To explore the role of sleep in the relationships between insecure attachment and depression, we investigated 755 college students with Close Relationship Inventory, Emotion Regulation Questionnaire, Self-rated Depression Scale, and Pittsburgh Sleep Quality Index. The results showed that (1) insecure attachment positively predicted poor sleep quality; (2) sleep quality partially affected depression, possibly due the same stress neuromodulators such as norepinephrine and cortisol; and (3) cognitive reappraisal moderated the mediating path leading from attachment anxiety to poor sleep quality. These findings highlight the moderating role of cognitive reappraisal in the effects of attachment anxiety on sleep quality and finally on depression. In conclusion, sleep quality links attachment anxiety and emotional disorders.

中文翻译：

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不安全依恋与抑郁症之间的关系：睡眠的中介作用和认知评估。

以前，我们已经证明神经调节剂是压力诱发的情绪障碍（例如抑郁症）的重要因素，例如，血清素是抑郁症的主要物质。许多心理学研究证明，抑郁症是由于不安全的依恋所致。另外，睡眠是抑郁症的主要症状。此外，血清素是睡眠和抑郁的底物。为了探索睡眠在不安全依恋和抑郁之间的关系中的作用，我们调查了755名大学生，他们具有密切关系量表，情绪调节问卷，自评抑郁量表和匹兹堡睡眠质量指数。结果表明：（1）不安全的依恋积极预测不良的睡眠质量；（2）睡眠质量部分影响抑郁症；可能是由于相同的压力神经调节剂，例如去甲肾上腺素和皮质醇；（3）认知重新评估缓解了从依恋焦虑到睡眠质量差的中介途径。这些发现突显了认知重新评估在依恋焦虑对睡眠质量以及最终对抑郁的影响中的调节作用。总之，睡眠质量将依恋焦虑和情绪障碍联系在一起。