The accuracy of aiming at a target. Some further evidence for a theory of intermittent control.

Abstract On the assumption that intermittent corrections to accurate movements aimed at a target are made every 290 msec on average, it was possible to predict where the last possible correction should occur. This was done by determining the shape of the approach curves at different speeds. The relationship between speed and error was successfully predicted by relating the terminal error to this corrective reaction distance, and thus to speed.