Table 4.

Effects of a female presence on the levels of monoamines and their ratios to the parent amine in the diencephalon of males

Monoamine	Isolated	View a female
Concentration (μg/g tissue)
DA	0.32 ± 0.04 (5)	0.31 ± 0.04 (6)
DOPAC	0.035 ± 0.011 (4)	0.028 ± 0.002 (6)
Epi	0.30 ± 0.06 (5)	0.19 ± 0.04 (6)
5-HIAA	0.052 ± 0.011 (4)	0.048 ± 0.002 (6)
5-HT	1.12 ± 0.15 (5)	0.83 ± 0.08 (6)
HVA	0.049 ± 0.011 (4)	0.046 ± 0.004 (6)
MHPG	0.037 ± 0.009 (4)	0.022 ± 0.003 (6)
NE	1.11 ± 0.17 (5)	0.69 ± 0.09 (6)
NM	0.053 ± 0.014 (4)	0.047 ± 0.003 (6)
Ratio
DOPAC/DA	0.10 ± 0.01 (4)	0.10 ± 0.01 (6)
5-HIAA/5-HT	0.048 ± 0.005 (4)	0.061 ± 0.006 (6)
HVA/DA	0.15 ± 0.02 (4)	0.16 ± 0.02 (6)
MHPG/Epi	0.13 ± 0.02 (4)	0.12 ± 0.02 (6)
MHPG/NE	0.032 ± 0.002 (4)	0.032 ± 0.002 (6)
NM/NE	0.046 ± 0.007 (4)	0.073 ± 0.009 (6)

Data are means ± SEM. Numbers in parentheses denote the number of birds analyzed.