ABSTRACT
The limitations of our action capabilities impose a critical constraint on successful performance. When braking to avoid a collision, for example, the rate of deceleration that would bring the actor to a stop at the intended location must be kept below the maximum possible deceleration. Ideal deceleration is optically specified, but maximum decelera-tion is a property of the actor’s body or vehicle. Calibration may be understood in terms of scaling information about ideal deceleration in intrinsic units of maximum deceleration, such that 1.0 separates situations in which it is still possible to stop from situations in which it is no longer possible to stop. Although participants partially recalibrated after just one trial, they did not fully recalibrate.
