Skip to main content
. 2012 Jan 25;7(1):e30918. doi: 10.1371/journal.pone.0030918

Figure 4. Proposed changes in pontine-nigral-striatal pathways in PD.

Figure 4

Enhanced pontine GABAergic activity (wider arrows) onto serotonergic (5HT) locus ceruleus (LC) and/or noradrenergic (NE) raphe neurons could result in a reduction in excitatory outflow (dashed arrows) to substantia nigral neurons. As a result, this may decrease nigral dopaminergic activity to the striatum (indicated by thin dashed arrow).