The involvement of endogenous opiate systems in learned helplessness and stress-induced analgesia

Biometry. The Principles and Practice of Statistics in Biological Research

Stephen E. Fienberg, Robert R. Sokal, F. James Rohlf et al. · Biometrics · 1970 · 9.5K citations

Natural Sciences, Biostatistics, Mathematics +11

A METHOD FOR DETERMINING LOSS OF PAIN SENSATION

F. E. D'Amour, Donn L. Smith · Journal of Pharmacology and Experimental Therapeutics · 1941 · 3.2K citations

Nursing, Pharmacology, Pain Management +14

Learned helplessness: Theory and evidence.

Steven F. Maier, Martin E. P. Seligman · Journal of Experimental Psychology General · 1976 · 2.4K citations

Education, Behavioral Sciences, Psychology +8

Failure to escape traumatic shock.

Martin E. P. Seligman, Steven F. Maier · Journal of Experimental Psychology · 1967 · 1.9K citations

Social Sciences, Psychology, Biological Psychology +8

Opioid and Nonopioid Mechanisms of Stress Analgesia

James W. Lewis, J. Timothy Cannon, John C. Liebeskind · Science · 1980 · 749 citations

Medicine, Pharmacology, Pain Medicine +16