Primary or psychophysiological insomnia has alternatively been viewed as either a predominantly psychological problem or as a predominantly physiological problem. Several early studies of patients were not able to document physiological differences, but more recent studies have found that many patients with primary insomnia take longer than control subjects to fall asleep on daytime nap tests despite feeling fatigued and they have elevated metabolic rate throughout both night and day. Other recent studies have found that increasing physiological arousal level for a week in normal sleepers produced the major secondary symptoms reported by insomniacs. In contrast, producing the disturbed sleep of insomniacs in a group of normal sleepers did not produce the typical pattern of secondary symptoms. Taken together, evidence is presented which supports the contention that primary insomniacs suffer from a disorder of hyperarousal and that the elevated arousal produces the poor sleep and other symptoms reported by patients. It is therefore suggested that new treatment strategies directed at reduction of arousal level be considered in these patients.

中文翻译：

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过度兴奋和失眠。

原发性或心理性失眠已被视为主要的心理问题或主要的生理问题。几项针对患者的早期研究无法证明其生理差异，但最近的研究发现，许多原发性失眠患者尽管感到疲劳，而且白天和晚上的代谢率均升高，但他们在白天小睡测试中入睡的时间却比对照组长。天。最近的其他研究发现，正常睡眠者在一周内提高生理唤醒水平会产生失眠症所报告的主要继发症状。相反，在一组正常的睡眠者中造成失眠的睡眠紊乱并没有产生典型的继发症状。在一起 提供的证据支持以下论点，即原发性失眠症患有高唤醒性疾病，而觉醒增强会引起睡眠不足和患者报告的其他症状。因此建议在这些患者中考虑针对降低唤醒水平的新治疗策略。