PDF(Pubmed)
Abstract：
Emotions experienced within sleep mentation (dreaming) affect mental functioning in waking life. There have been attempts at enhancing dream emotions using olfactory stimulation. Odors readily acquire affective value, but to profoundly influence emotional processing, they should bear personal significance for the perceiver rather than be generally pleasant. The main objective of the present sleep laboratory study was to examine whether prolonged nocturnal exposure to self-selected, preferred ambient room odor while asleep influences emotional aspects of sleep mentation and valence of post-sleep core affect. We asked twenty healthy participants (12 males, mean age 25 ± 4 years) to pick a commercially available scented room diffuser cartridge that most readily evoked positively valenced mental associations. In weekly intervals, the participants attended three sessions. After the adaptation visit, they were administered the odor exposure and odorless control condition in a balanced order. Participants were awakened five minutes into the first rapid eye movement (REM) stage that took place after 2:30 a.m. and, if they had been dreaming, they were asked to rate their mental sleep experience for pleasantness, emotional charge, and magnitude of positive and negative emotions and also to evaluate their post-sleep core affect valence. With rs < 0.20, no practically or statistically significant differences existed between exposure and control in any outcome measures. We conclude that in young, healthy participants, the practical value of olfactory stimulation with self-selected preferred scents for enhancement of dream emotions and post-sleep core affect valence is very limited.
摘要：
在睡眠状态（做梦）中经历的情绪会影响清醒生活中的心理功能。已经尝试使用嗅觉刺激来增强梦的情绪。气味很容易获得情感价值，但要深刻影响情绪处理，它们应该对感知者具有个人意义，而不是一般令人愉快。当前睡眠实验室研究的主要目的是检查是否长时间夜间暴露于自我选择，睡眠时首选的环境房间气味会影响睡眠状态的情绪方面和睡眠后核心影响的效价。我们询问了20名健康参与者(12名男性，平均年龄25±4岁），以选择一种市售的有气味的房间扩散器盒，该盒最容易引起积极的心理关联。每周间隔，与会者参加了三场会议。适应访问后，他们以平衡的顺序给予气味暴露和无味控制条件。参与者在凌晨2:30之后的第一个快速眼动（REM）阶段被唤醒五分钟，如果他们一直在做梦，他们被要求评价他们的精神睡眠体验是否愉快，情感上的指控，以及积极和消极情绪的程度，并评估其睡眠后的核心影响效价。rs<0.20时，在任何结果指标中，暴露与对照之间均无实际或统计学上的显着差异。我们得出结论，在年轻时，健康的参与者,具有自我选择的偏好气味的嗅觉刺激对于增强梦境情绪和睡眠后核心情感效价的实用价值非常有限。
