Judge the timing of events on a rotating clock. Compare your results at the end.
Press SPACE whenever you want. Then report when you pressed it.
Watch the clock hand...
Where was the clock hand when the event occurred?
When you perform a voluntary action that causes an effect (like pressing a key that produces a sound), something strange happens: you perceive the action as occurring later than it actually did, and the effect as occurring earlier. The subjective gap between action and effect is compressed.
This does not happen when the action is involuntary - when something just happens to you rather than being something you chose to do. The binding of cause and effect in consciousness seems to depend on your sense of agency.
In this Libet-style clock experiment, you will observe a rotating clock hand and report its position at the moment of different events:
1. Voluntary action: You press SPACE and report when you pressed it
2. Voluntary tone: You press SPACE, hear a tone 250ms later, report when you heard the tone
3. Involuntary action: A flash appears automatically, report when you saw it
4. Involuntary tone: A flash appears, a tone plays 250ms later, report when you heard the tone
Intentional binding suggests that agency reshapes time perception. When we act voluntarily, our brain constructs a tighter temporal link between our action and its consequences. This may serve to reinforce our sense of causal control - we experience ourselves as unified agents whose intentions smoothly flow into outcomes.
This raises questions: Is our experience of being the author of our actions a construction? Does consciousness create a sense of seamless agency by editing the perceived timing of events?