A study of Self-paced Manual Prview Control…Macroscopic Relations among Tracking Speed, Tracking Error and Eye-movement

Abstract

Some experiments on self-paced manual preview control were performed to investigate human characteristics concerning the tracking speed, the error and properties of the eye-movement at such control tasks. We obtain the following basic results.
The increase of the lengths and the complexities of the input preview signals seems to effect on the tracking speed rather than the error. They stimulate the acceleration of the speed, the decrease of the tracking accuracy and the forward movement of the distribution of the eye-fixations. The average smoothing time of the eye-movement does not so change in each situation.
Morerover, we can see that the average speed and the tracking error have a quantitative relation which is proper to the given input signal. In view of information theoretical study on this relation, we have a conclusion that the signal processing time-lag of the human controler seems to be in proportion to the minimum channelcapacity which is necessary to realize the input-output distortion (tracking error) generated by him.