"We found that activations in the left putamen, the reward centre located at the base of the forebrain, were consistently lowest at the 2 pm measurement compared to the start and end of the day," says researcher Jamie Byrne.“

“我们发现活跃的区域位于左侧“豆状核”，奖励反应的中心，在前脑的深处，连续几天的测试比较发现，下午两点的测试结果是一天三次中成绩最差的。”研究人员杰米布莱恩说。

his is in line with their hypothesis, which claimed the brain's response to rewards varies according to the same biological rhythm that encourages us to wake, sleep, or feel hungry during the day.

这印证了他们之前假设，大脑对于奖励刺激和身体让我们醒来、睡觉、饥饿的生物节律是一样的。

In other words, our brain isn't expecting a task to be as rewarding in the morning and late in the evening as it is in the middle of the day.

换句话说，比起早晨和晚上，在中午我们的大脑对于奖励的渴望并没有那么强烈。

The research doesn't provide evidence explaining the reasons why our brains are primed to learn from experiences better at the beginning and end of a day. It was also only on a small group of males, so there's still plenty of room for debate.

研究并没有说明为什么我们的大脑为什么早晚的学习能力强，而且式样的样本也只是一组为数不多的男性，所以还有很多让人质疑的空间。

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