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鼻子管着你的梦？[文章版权 禁止转载:考试与评价 'YzHF-P~lGNy"FroG]
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我们每天睡觉都会做各种各样的梦。在描述它们的时候，我们常说“当时我脑海里浮现出……”这样的话。实际上，决定你做什么梦的可能并不是你的大脑，而是你鼻子的“工作”。
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What you smell may influence emotions in your dreams, according to a new study.
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When researchers gave dreaming subjects whiffs of rose scent, the subjects reported rosier dreams. The scent of rotten eggs（腐败的鸡蛋）, on the other hand, provoked unpleasant dreams, the study found.
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The sense of smell is known to be closely associated with the brain's limbic system（大脑边缘系统）, which governs emotion and behavior.
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"If odor has a strong effect on your emotions when you're awake, it makes sense for it to have a strong effect on your emotions when you're asleep," said Stuck, who presented the research Sunday in Chicago at the annual meeting of the American Academy of Otolaryngology（耳鼻喉学）—Head and Neck Surgery. The findings have not been published.
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Stuck and his colleagues studied the effects of rose and rotten-egg odors on 15 healthy women in their 20s. Young women have been shown to have the best sense of smell, they said.
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Tubes were taped to the subjects' nostrils, linking them to olfactometers（嗅觉测量仪）. The devices pumped constant streams of air into their noses so a gust of odor would not wake them.
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The subjects' brain activity was also being monitored. When they reached the rapid-eye-movement (REM) stage of sleep, when most dreams occur, a shot of scent was administered via the olfactometer for ten seconds.
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The dreamers continued sleeping for another minute until the scientists woke them up and asked them to describe their dreams and rate the experience as emotionally negative or positive.
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The results showed that smelling roses gave nearly all dreams a pleasant tint, whereas the rotten eggs colored dreams negatively.
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