来自《犯罪心理第5季第8集第8集》

One looks at the biological factors...

围绕生物因素展开
That is the genetics and also the brain pathology.

可以称为基因学或脑病理学
The 5 brains we identified

我们确定的5个大脑
All had damage to the orbital cortex

均有过眶额叶皮质的损伤
Which is right above the eyes.

就在眼睛的正下方
Now high-risk allele of the monoamine oxidase A

单胺氧化酶中头号高危的等位基因
The MAOA gene

单胺氧化酵素基因
May also be present in these people

这些人的大脑里都能看到
And that's key.

这是关键所在
Now under the effects of the high-risk gene

在高危基因的作用之下
The brain of the psychopath was bathed

精神变态者的大脑在其胚胎
In way too much serotonin during fetal development.

发育伊始就开始分泌复合胺