Why is it likely that people can report the time of a visual stimulus more accurately than the time of a voluntary decision to make a movement?

Question

Quizplus · Accepted Answer

Voluntary decisions to make a movement involve a complex sequence of neural events that occur over a relatively long period of time, making it difficult for people to accurately report the exact moment in time when the decision was made. On the other hand, visual stimuli are more immediate and typically only require a brief amount of neural processing time, allowing people to more accurately report the timing of the stimulus.

Why Is It Likely That People Can Report the Time