We've recently been able to use some new technology through MRI imaging to see for the first time what is actually happening inside the joint when someone pops or cracks their knuckles.

我们最近通过磁共振成象技术第一次看了当人们掰响他们的指，指的内发生了什么。

Or you can go into the scanner, the FMRI, and there, the blood flow, the oxygen indicates again changes in the configuration of the brain as it takes in this new stimulus.

或者你可以进入扫描仪，也就是功能性磁共振成象，血流和氧气也会显示大脑结构在接收新刺激的变化。