For over 30 years, scientists have been investigating the phenomenon of pain suppression
upon exposure to unconditioned or conditioned stressful stimuli, commonly known as stress …

A review of pharmacological, neuroanatomical, electrophysiological, and behavioral data
indicates that systems controlling cardiovascular function are closely coupled to systems …

Hunger and pain are two competing signals that individuals must resolve to ensure survival.
However, the neural processes that prioritize conflicting survival needs are poorly …

Inescapable foot shock in rats caused profound analgesia that was antagonized by
naloxone or dexamethasone when shock was delivered intermittently for 30 minutes, but not …

In this paper we have examined the phenomenon of stress-induced analgesia. We have
described the procedures used to measure analgesia and have suggested that the tests can …

Extensive evidence has indicated that distinct neural systems specifically designed to inhibit
sensitivity to painful stimuli exist. Recent advances suggest that the endorphins, enkephalins …

Animals exposed to cold-water swims, rotation, or inescapable shocks, display analgesia
comparable to that of 10 mg/kg of morphine. The present study investigated whether a …

This book presents a way of organizing evidence from many diverse disciplines, and it
shows that much of what has been uncovered empirically about the psychobiology of …

Documentation and rationale are provided for the use of deep hypothermia alone for
anesthesia during surgical manipulations in young preweanling rodents and moderate …

Environmental stress causes the activation of two types of endogenous pain inhibitory
systems in animals: opioid analgesia is antagonized by opiate receptor blockers (eg …