研究负责人、来自耶鲁大学的Rajita Sinha教授表示,关键是要通过吃健康的食物来保持体内的血糖水平,我们的大脑需要食物。
The research is reported today in the Journal of Clinical Investigation.
Prof Sinha's team manipulated blood sugar levels in a group of volunteers with intravenous injections of glucose.
该研究今天发表在《临川研究期刊》上,Sinha教授的研究小组通过对一组研究志愿者进行静脉注射葡萄糖来控制他们体内的血糖水平。
At the same time, participants underwent functional magnetic resonance imaging (fMRI) scans of their brains while being shown pictures of high-calorie and low-calorie food, and non-edible items.
同时研究参与者要进行功能性核磁共振检查,来扫描脑部活动。扫描将分别呈现出高卡路里食物、低卡路里食物和非食用性项目的不同结果。
The scans showed that when glucose levels fell, two 'reward' regions of the brain that make certain activities pleasurable induce a desire to eat.
扫描结果显示,当体内葡萄糖水平降低,大脑内的两个“奖励区”会发出一些行动引起进食的欲望。
But the most pronounced reaction was seen in the prefrontal cortex, the 'sensible' part of the brain that prevents people acting on impulse.
最显著的反应出现在前额叶皮层,大脑的“理智”部分将阻止人们冲动行事。
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