The effect of MK-801 and SCH23390 on the expression and sensitization of morphine-induced oral stereotypy.

@article{Livezey1995TheEO,
  title={The effect of MK-801 and SCH23390 on the expression and sensitization of morphine-induced oral stereotypy.},
  author={R T Livezey and L B Pearce and Conan Kornetsky},
  journal={Brain research},
  year={1995},
  volume={692 1-2},
  pages={93-8}
}
Repeated high doses of morphine sulfate, administered in a 24-36 h period, stimulates the expression of oral stereotypy in rats. Sensitization to this effect of morphine is demonstrated by the reexpression of the stereotypy by the administration of 4.0 mg/kg of morphine one week following the original exposure. To investigate the role of N-methyl-D-aspartic acid (NMDA) and D1 dopamine (DA) receptors in the acute expression and sensitization of morphine-induced oral stereotypy, rats were… CONTINUE READING