Brain imaging reveals that it stimulates the reward centres of our brains.

大脑成像显示，利他主义会刺激我们的大脑中的奖励中心。

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Passionate love is sparked by the reward part of the brain and the cognitive part, which has higher-order cognitive functions, such as those related to body image.

而爱情则是由大脑的奖励区域和认知区域控制的，认知区域具有高级的认知功能，例如识别身体形象。

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Not surprisingly, passionate love fires the reward part of the brain, but it also affects the higher-order cognitive function seen in body image.

并不令人吃惊的是，激情之爱可激发大脑获得报酬而产生愉悦感的区域，它同时也影响到身体意象的高阶认知功能。

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"There was a lower concentration of dopamine markers in the brain of individuals with A.D.H.D., specifically in the areas of the brain that are involved with reward and motivation."

VOA: special.2009.09.29

But the new study suggests that the neostriatum plays a role in the reward systems of the brain, too, DiFeliceantonio said.

MSN: Brain chemical turns rats into M&M gluttons - Technology & science - Science - LiveScience | NBC News

It sells because it engages that pleasurable reward center of your brain.

FORBES: Neuromarketing: Tapping Into the 'Pleasure Center' of Consumers

The reward centers of the adolescent brain are much more active than those of either children or adults.

WSJ: What's Wrong With the Teenage Mind?