“Negative” emotions are never purely negative. They attract attention at the very least and often stay attractive enough to make rehearsing them an addictive activity. As the authors point out, they also counteract a relentless tendency for positive emotions to become boring. Analysis in terms of reward suggests why this tendency occurs and how symbiosis with negative emotions may arise, in art and in life.

中文翻译：

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积极与消极是时间问题

“负面”情绪绝不是纯粹的负面情绪。它们至少会引起注意，并且经常保持足够的吸引力，使排练成为一种令人上瘾的活动。正如作者指出的那样，它们还抵消了积极情绪变得无聊的无情倾向。奖励方面的分析表明为什么会出现这种趋势，以及在艺术和生活中如何与负面情绪共生。