Fig. 9.
S2-type terminals form dual synaptic contacts with dendrites of projection neurons and vesicle-filled putative interneuron dendrites, (a-c) GFP-labeled terminal (S2) making synaptic contact (black arrowheads) with a vesicle-filled interneuron’s dendrite (v. Den) and a projection neuron (Den) in CM (a-b) of a normal monkey and in the VApc (c) of a MPTP-treated monkey, (d-e) Proportion of GFP-labeled (pallidothalamic-S2) terminals in the VApc (d) and the CM (e) in contact with dendrites of projection neurons or interneurons in control (N=2) and parkinsonian (N=2) monkeys. Scale bars correspond to 1μm.