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Nuclei within the basal ganglia—such as the globus pallidus external segment, subthalamic nucleus, and substantia nigra pars reticulata—have been shown to exhibit synchronous bursting activity entrained to excessive cortical beta oscillations following dopamine depletion. Zolpidem binds to GABAA receptors with selectivity for those expressing the α1 subunit, potentiating inhibitory postsynaptic currents...
Previously, we have shown that GABA A receptors and glutamate receptors in substantia nigra play distinct roles in the regulation of somatodendritic dopamine release. GABAergic input to substantia nigra was found to be the primary determinant of the level of spontaneous somatodendritic dopamine release. In contrast, acute blockade of dopamine receptors by systemic haloperidol administration...
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