. Author manuscript; available in PMC: 2008 Jun 26.

Published in final edited form as: J Comp Neurol. 2008 Feb 1;506(4):616–626. doi: 10.1002/cne.21576

TABLE 3.

Frequency of CRF-IR Axon Terminals Making Asymmetric or Symmetric Synapses on Cell Bodies or Dendrites Containing (+) or Lacking (−) TH Immunoreactivity in the VTA

	Total number of counted synapses (n = 350) 100%
Postsynaptic targets of CR-IR axon terminals	Asymmetric synapses (n = 210) 60%	Symmetric synapses (n = 140) 40%
Total % of synapses on TH⁺neurons (42%)
Cell bodies TH⁺	2% (n = 7)	1% (n = 3)
Dendrites TH⁺	33% (n = 116)	6% (n = 22)
Total % of synapses on TH⁻ neurons (58%)
Cell bodies TH⁻	1% (n = 3)	14% (n = 49)
Dendrites TH⁻	24% (n = 84)	19% (n = 66)