在中国南方的中山大学里,周欣悦仔细探索了这种温暖效应。她和她的同事花了一个月时间追踪记录学生们,结果发现在寒冷天气里,这种怀旧情绪更为常见。研究者们也发现,当人们呆在20度的凉爽房间里时,他们比呆在暖和房间里更容易怀旧。
Not everyone in the cool room turned nostalgic during the experiment, but the ones who did reported feeling warmer. That mind-body link, Dr. Wildschut says, means that nostalgia might have had evolutionary value to our ancestors long before Odysseus.
在实验中,并不是所有呆在凉爽房间里的人都会怀旧,但那些怀旧的人确实表示感觉更温暖了。斯蒂基特博士说,这个心理与身体的联系表示,也许早在奥德修斯之前,怀旧已经对我们的祖先产生进化上的意义。
"If you can recruit a memory to maintain physiological comfort, at least subjectively, that could be an amazing and complex adaptation," he says. "It could contribute to survival by making you look for food and shelter that much longer."
“如果回忆可以至少让你自我感觉身体舒适,这都会是一种神奇并复杂的环境适应,”他说,“它让你可以坚持更长时间以寻觅食物与庇护,这有助于生存。”
Finding a Sweet Spot
寻找甜蜜的时刻
Of course, memories can also be depressing. Some researchers in the 1970s and '80s suggested that nostalgia could worsen a problem that psychologists call self-discontinuity, which is nicely defined in "Suite: Judy Blue Eyes," by Stephen Stills: "Don't let the past remind us of what we are not now." This sense of loss and dislocation has repeatedly been linked to both physical and mental ills.
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