The opioid/nonopioid nature of stress-induced analgesia and learned helplessness.

Learned helplessness: Theory and evidence.

1976 • 2,255 citations

Endogenous pain control mechanisms: Review and hypothesis

1978 • 1,217 citations

Organization of Endogenous Opiate and Nonopiate Pain Control Systems

1982 • 793 citations

Opioid and Nonopioid Mechanisms of Stress Analgesia

1980 • 744 citations

Stress-induced parallel changes in central opioid levels and pain responsiveness in the rat

1977 • 560 citations

Behavioral and physiological studies of non-narcotic analgesia in the rat elicited by certain environmental stimuli

1978 • 416 citations

Effects of coping responses on stress.

1968 • 406 citations

Stress-induced analgesia: Neural and hormonal determinants

1980 • 347 citations

The role of endorphins in stress: Evidence and speculations

1980 • 345 citations

Effect of inescapable shock on subsequent escape performance: Catecholaminergic and cholinergic mediation of response initiation and maintenance

1979 • 277 citations

Failure to learn to escape in rats previously exposed to inescapable shock depends on nature of escape response.

1973 • 274 citations

Endogenous opioid ligands may mediate stress-induced changes in the affective properties of pain related behavior in rats

1978 • 273 citations

Long-Term Stress-Induced Analgesia and Activation of the Opiate System

1981 • 266 citations

Footshock induced analgesia in mice: Its reversal by naloxone and cross tolerance with morphine

1977 • 234 citations

Effects of coping behavior with and without a feedback signal on stress pathology in rats.

1971 • 230 citations

Adrenal Medullary Enkephalin-Like Peptides May Mediate Opioid Stress Analgesia

1982 • 203 citations

Long-Term Analgesic Effects of Inescapable Shock and Learned Helplessness

1979 • 197 citations

Opioid and non-opioid stress analgesia: assessment of tolerance and cross-tolerance with morphine

1981 • 194 citations

Opiate antagonists and long-term analgesic reaction induced by inescapable shock in rats.

1980 • 182 citations

The pituitary gland mediates acute and chronic pain responsiveness in stressed and non-stressed rats

1979 • 181 citations

Autoanalgesia: Opiate and non-opiate mechanisms

1980 • 149 citations

Opiate vs non-opiate footshock-induced analgesia (FSIA): The body region shocked is a critical factor

1982 • 139 citations

Controllability, coping behavior, and stress-induced analgesia in the rat

1982 • 135 citations

Extent and control of shock affects naltrexone sensitivity of stress-induced analgesia and reactivity to morphine

1982 • 83 citations

Cross tolerance between morphine and the long-term analgesic reaction to inescapable shock

1981 • 78 citations

Swim-Stress-Induced Inactivity: Relation to Body Temperature and Brain Norepinephrine, and Effects of d-Amphetamine

1970 • 53 citations

An endorphinergic, centrifugal substrate of pain modulation: recent findings, current concepts, and complexities.

1980 • 47 citations

Hypophysectomy differentially affects morphine and stress analgesia.

1981 • 43 citations

Dissociation of long-term analgesia and the shuttle box escape deficit caused by inescapable shock.

1982 • 38 citations

Dissociation of antinociception and escape deficits induced by stress in mice.

1980 • 32 citations

Stress-induced analgesia: Effect of naloxone following cold water swims

1978 • 18 citations