In another experiment, Libet tested whether a stimulus applied directly to the brain caused any sensation in some of his surgery patients, who were awake, as most patients are in such operations.

• 利贝特做了另一个实验，他想知道，直接刺激大脑是否会让手术中的患者产生任何感觉；这些患者都是清醒的，如同大多数接受这类手术的人一样。