当我面对广告时，我想知道对自己的思想有多少控制力- - -所以我找到了加州大学伯克利分校的某个实验室，并带上传感器进行实验。
But recently, I've been wondering just how much control I have over my thoughts, when it comes to ads - which is how I found myself in this Berkeley, Calif., lab wearing a hat of electrodes.
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