——顾客头戴脑电图仪的情景的确十分可笑，可是也甚为令人担忧。
The notion of shoppers wearing brain-scanning hats would be ridiculous if it were not so alarming.
研究人员使用携带型脑电图仪记录了16名被诊断为处于植物人状态的患者大脑中传来的电子信号。
Researchers used a portable electroencephalography (EEG) device to record electrical signals from the brains of 16 patients diagnosed as being in a vegetative state.
通过脑电图仪数据分析，科学家们来判断大脑的哪一部分控制着刹车信号，相应的以此来改进这个系统。
This data enabled the scientists to analyse the EEG information to determine which parts of the brain are key to braking. They improved the detection system accordingly.
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