Blockade of enkephalinergic and GABAergic mediated locomotion in the nucleus accumbens by muscimol in the ventral pallidum.

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Abstract
The mu-opioid agonist, DAGO, and the indirect GABAA antagonist, picrotoxin, produced a dose-dependent increase in horizontal motor activity following injection into the nucleus accumbens that was independent of dopamine release. Injection of muscimol into the ventral pallidum antagonizes the motor stimulant effect of dopamine agonists. It was shown that muscimol abolished the locomotor stimulant effect of DAGO microinjection into the nucleus accumbens, and partially antagonized the effect of picrotoxin.