Antinociception following opioid stimulation of the basolateral amygdala is expressed through the periaqueductal gray and rostral ventromedial medulla.

@article{Helmstetter1998AntinociceptionFO,
  title={Antinociception following opioid stimulation of the basolateral amygdala is expressed through the periaqueductal gray and rostral ventromedial medulla.},
  author={Fred J. Helmstetter and Sheralee A Tershner and L H Poore and Patrick S. F. Bellgowan},
  journal={Brain research},
  year={1998},
  volume={779 1-2},
  pages={104-18}
}
The amygdala, periaqueductal gray (PAG), and rostral ventromedial medulla (RVM) are critical for the expression of some forms of stress-related changes in pain sensitivity. In barbiturate anesthetized rats, microinjection of agonists for the mu opioid receptor into the amygdala results in inhibition of the tail flick (TF) reflex evoked by radiant heat. We tested the idea that TF inhibition following opioid stimulation of the amygdala is expressed through a serial circuit which includes the PAG… CONTINUE READING

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