It works by stimulating the brains pleasure centers.

它的原理是刺激大脑的愉悦中枢。

Their brain pleasure centers were disinterested in images that had not been paired with food smells.

他们大脑中的愉悦中心对未与食物气味匹配的图片没有反应。

Genes involved in motor control were also revved up, as were those that light up the brain's pleasure center.

而与控制运动相关的基因也变得活跃，进而触动大脑的愉快中枢。

I'm sorry, but... the fact that the sexual pleasure center...

不好意思 可是你的性快感。