Negative and Positive Mental Practice in Motor Skill Acquisition

Perry H. M. The relative efficiency of actual and “imaginary” practice in five selected tasks. Archives of Psychology, 1939, 34, No. 243.

Twining W. E. Mental practice and physical practice in learning a motor skill. Research Quarterly, 1949, 20, 432–435.

Ulich E. Some experiments on the function of mental training in the acquisition of motor skills. Ergonomics, 1967, 10, 411–419.