A linear model for the response time in motion prediction.

A linear relationship was found to exist between the response time and the concealment time in motion extrapolation experiments. It follows that the subjects performance is characterized by the two parameters of the linear relationship rather than by the error in determining the position of the occluded moving stimulus. These two parameters can be manipulated separetely by specific changes in the experimental arrangement. A suggestion is made that one of the parameters is connected with velocity estimation, while the other with internal organization and execution of the motor response.