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Midbrain. SNr GABA. SNc DA. The basal ganglia, Parkinson’s Disease and glutamatergic drive to the substantia nigra. Striatum. DS. Cortex. VS. Thalamus. GPe. GPi. 1. STN. 2. The basal ganglia circuitry in the mammalian brain is important for motivation and action.
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Midbrain SNr GABA SNc DA The basal ganglia, Parkinson’s Disease and glutamatergic drive to the substantia nigra Striatum DS Cortex VS Thalamus GPe GPi 1. STN 2. The basal ganglia circuitry in the mammalian brain is important for motivation and action 1. Loss of substantia nigra dopaminergic neurones occurs in Parkinson’s disease (PD) 2. Glutamatergic drive from the subthalamic nucleus becomes over-active in PD