Blocking the release of dynorphin, researchers restore motivation in animals experiencing pain. The findings may help in the development of new, less addictive, pain medications.
Researchers have identified a specific circuit in the brain's central amygdala that raises anxiety levels. The study could pave the way for the development of new treatments for anxiety disorders.
Findings suggest drug treatments for addiction and depression simultaneously may stimulate and reward and aversion responses.
Researchers discover how sodium influences the signalling of opioid receptors.
Researchers have new evidence in rats to explain how it is that chocolate candies can be so completely irresistible. The urge to overeat such deliciously sweet and fatty treats traces to an unexpected part of the brain and its production of a natural, opium-like chemical.
