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Synapse. 1998 Jan;28(1):27-32.

Effects of intrapallidal cannabinoids on rotational behavior in rats: interactions with the dopaminergic system.

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1
Department of Psychology, Brown University, Providence, Rhode Island 02912, USA. Clara@Poppy.Psych.Brown.Edu

Abstract

The effect of unilateral intrapallidal cannabinoid receptor stimulation on rotational behavior in rats was explored. The potent cannabinoid agonist CP55,940 (5 microg/0.5 microl) induced ipsilateral turning when microinjected unilaterally into the globus pallidus. The D2 dopamine agonist quinpirole reversed this ipsilateral rotation but failed to affect motor behavior on its own. Finally, the D1 dopamine agonist SKF 82958 inhibited movement when administered into the globus pallidus, and this effect was not additive with CP55,940.

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