And although Asimov's "positronic" brains do not exist, positrons are indeed used to probe human brains in positron-emission tomography (PET) scanning.
And they did an imaging test called positronemission tomography or PET to test for brain function by looking to see how well the brain USES glucose or sugar.
他们做了一个成像测试正电子发射断层或PET测试脑功能，看看大脑是如何使用好葡萄糖或糖。
3
Lisa Mosconi and colleagues at the New York University School of Medicine used positronemission tomography, or PET, scans to look at the brains of 53 normal elderly people.