Using electrodes they found the area of the brain that is involved in creating the 40 or so sounds that form the English language.

研究人员利用电极发现，人脑的某个区域与产生形成英语的大约40种声音有关。

youdao

Scanning their brains using functional magnetic resonance imaging, the scientists found that a region involved in language processing - the temporal lobe, part of the prefrontal cortex - was activated during verbal learning in rested patients.

BBC: Brain 'battles sleep deprivation'