字幕表 動画を再生する 英語字幕をプリント In the 1980s, the neuroscientist Benjamin Libet conducted a study that shook the very foundations of what we understand about free will. Libet wanted to find out whether our mind prepares for a movement before we are consciously aware of it — and so he and his team set up an experiment. Participants in the study were asked to flex their wrists whenever they felt the urge to do so. While doing so, Libet monitored their brain activity [EEG] through electrodes placed on their heads and found activity before the people decided to move their hands. In other words, the brain started the process, way before the person decided to do it. When we plot a graph measuring time and brain activity, known as readiness potential, the movement started at time 0, participants reported being aware of their decision 150 milliseconds earlier, but the brain actually began to act 500ms before the move. It didn't take long before psychologists and philosophers from all over the world discussed Libet's research and wondered: If our brain initiates a decision before we're consciously aware of it, then how "free" are our decisions, really? And ever since, teams of scientists have tried to replicate Libet's findings, with mixed conclusions. Libet himself did not interpret his experiment as evidence that our decisions are predetermined. He said: “The tendency to press a button may be building up for 500 milliseconds, but the conscious mind retains the right to veto any action at the last moment.” What are your thoughts? And if our brain has already started the process of making a decision before we're consciously aware of it, to what extent are we truly in control? And if we are not, how would this influence our understanding of personal responsibility for our actions? If you like this video and want us to make more, subscribe to our channel or support us on Patreon.
B1 中級 米 The Libet Experiment & Question of Free Will(The Libet Experiment & Question of Free Will) 55 2 林宜悉 に公開 2024 年 02 月 28 日 シェア シェア 保存 報告 動画の中の単語