In one experiment, Libet documented a gap between the time an individual was conscious of the decision to flex his finger( and recorded the exact moment of that consciousness) and the time his brain waves indicated that a flex was imminent.

• 利贝特在一个实验中发现，受测者意识到决心弯曲手指的时间（且记录到意识的那一刻）与脑波显示手指即将弯曲的时间，两者之间有一个时间差。