1. Sensitivity to heart rate: A psychophysical study;Ashton;Psychophysiology,1979
2. Sources of information which affect training and raising of heart rate;Bergman;Psychophysiology,1972
3. The operant learning theory approach to biofeedback training;Black,1977
4. A general model of voluntary control applied to the phenomena of learned cardiovascular change;Brener,1974
5. Factors influencing the specificity of voluntary cardiovascular control;Brener,1974