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. Author manuscript; available in PMC: 2014 Aug 21.
Published in final edited form as: Brain Res. 2013 Jun 15;1527:29–39. doi: 10.1016/j.brainres.2013.06.010

Table 3.

Non-Significant Linear Regression Results of Mu-Opioid Receptor Label (Optical Density) and Total Song

Brain Region F(df) R2 Adj. R2 Standard Error of the Estimate p-value
POM 2.06 (1, 12) 0.15 0.08 0.004 0.18
PAG 0.39 (1, 12) 0.03 −0.05 0.011 0.54
BSTm 0.10 (1, 13) 0.01 −0.07 0.008 0.76
VTA 1.01 (1, 11) 0.08 0.0004 0.009 0.34
PVN 1.30 (1,9) 0.13 0.03 0.001 0.28
SL 0.96 (1,13) 0.13 −0.003 0.016 0.35