AmmonsR. B.Acquisition of motor skill: I, Quantitative analysis and theoretical formulation. Psychol. Rev., 1947, 54, 263–281.
2.
EasonR. G.An electromyographic study of impairment and estimates of subjective effort associated with voluntary muscular contraction. (Res. & Dev. Rep. No. 898) San Diego, Calif.: U. S. Navy Electronics Laboratory, 22 May, 1959.
3.
FreemanG. L.The relationship between performance level and bodily activity level. J. exp. Psychol., 1940, 26, 602–608.
4.
HullC. L.Principles of behavior. New York: Appleton-Century, 1943.
5.
KimbleG. A.An experimental test of a two-factor theory of inhibition. J. exp. Psychol., 1949, 39, 15–23.
6.
KlingJ. W.WilliamsJ. P.SchlosbergH.Patterns of skin conductance during rotary pursuit. Percept. Mot. Skills, 1959, 9, 303–312.
7.
MalmoR. B.Measurement of drive: An unsolved problem in psychology. In. JonesM. R. (Ed.), Nebraska symposium on motivation. Lincoln: Univer. of Nebraska Press, 1948. Pp. 229–264.