Table 1.

Synaptic contacts of BDA-labeled PFC terminals within the rat VTA

	Retrograde labeling from the NAc	Retrograde labeling from the PFC
TH-labeled tissue
BDA-labeled terminals forming synapses	52	53
onto unlabeled dendrites	28  (54%)	34  (64%)
onto dendrites labeled for TH only	20  (38%)	14  (26%)
onto dendrites labeled for FG/PRV only	4  (8%)	0  (0%)
onto dendrites labeled for both TH and FG/PRV	0  (0%)	5  (9%)
GABA-labeled tissue
BDA-labeled terminals forming synapses	46	49
onto unlabeled dendrites	29  (63%)	28  (57%)
onto dendrites labeled for GABA only	12  (26%)	18  (37%)
onto dendrites labeled for FG/PRV only	0  (0%)	3  (6%)
onto dendrites labeled for both GABA and FG/PRV	5  (11%)	0  (0%)