1. Pain. A Psychophysiological Analysis;Sternbach,1968
2. Psychologic Differentiation Studies of Development;Witkin,1962
3. Pain reactivity and field-dependence;Sweeney;Percept. Mot. Skills,1965
4. An experimental pain method sensitive to morphine in man: The submaximal effort tourniquet technique;Smith;J. Pharmac. exp. Therap.,1966
5. A short form of Witkin's embedded-figures-test;Jackson;J. Abnorm. Soc. Psychol.,1956