Luc De Nil, of the University of Toronto, has been poring over stutterers' brains using positron emission tomography and functional magnetic resonance imaging.

多伦多学的卢∙德∙尔已经用正电子发射断层扫描和功能性磁共振成像仔细研究了口吃者的脑。

So this is a kind of brain scan called positron emission tomography or PET. It looks at brain energy levels.

所以这是一种称为正电子发射断层扫描或 PET 的脑部扫描。它着脑能量水平。

1975 The first positron emission tomography, PET, scanner, goes into service in St Louis, Missouri in the US.

1975年，美国密苏里州圣路易斯市启用了首台正电子发射断层扫描（PET）扫描仪。

These were really the first studies of brain imaging using positron emission tomography long before fMRI.

这些实际上是最早使用正电子发射断层扫描进行脑成像的研究，比fMRI早得多。