A Reply to Dr. Max Hammerton

Adams J. A. (1961). Human tracking behavior. Psychol. Bull. 58, 55–79.

Annett J. Golby C. W. Kay H. (1958). The measurement of elements in an assembly task—The information output of the human motor system. Quart. J. exp. Psychol. 10, 1–11.

Crossman E. R. F. W. (1960). The information-capacity of the human motor-system in pursuit tracking. Quart. J. Exp. Psychol. 12, 1–16.

Elkind J. I. (1953). Tracking response characteristics of the human operator Human Factors Operation Research Laboratories Report HFORL Memo. No. 40 PRP2.

Fitts P. M. (1954). The information-capacity of the human motor system in controlling the amplitude of hand-movements. J. exp. Psychol. 47, 381–91.

McDonald R. A. Schultheiss P. M. (1964). Effective bandlimits of Gaussian processes under a mean-square error criterion. Proc. I.E.E.E. (correspondence) 52, 1080–1.

McRuer D. T. Krendel E. S. (1959). The human operator as a servo-system element. J. Franklin Inst. 267, 1–49.

Pinsker M. S. (1964). Information and Information Stability of Random Variables and Processes Feinstein A. San Francisco.

Poulton E. C. (1952). On the basis of perceptual anticipation in tracking. Brit. J. Psychol. 43, 295–302.

Tustin A. (1947). The nature of the operator's response in manual control and its implications for controller design. J. Inst. Elec. Engrs. 94, 190–202.