. Author manuscript; available in PMC: 2013 Apr 1.

Published in final edited form as: Pharmacol Biochem Behav. 2006 Sep 18;86(2):209–219. doi: 10.1016/j.pbb.2006.07.033

Table 1.

Reproductive and endocrine measures of adult, proestrous rats (n = 8–16/grp) that were selectively bred for infantile vocalization responses to maternal separation

Measure	Rats selectively- bred for response to maternal separation as infants
Measure	High- anxiety	Low- anxiety
Incidence of lordosis (%)	80 ± 6^*	54 ± 10
Intensity of lordosis	2.3 ± 0.2^*	1.4 ± 0.3
Incidence of solicitation (%)	54 ± 9^#	33 ± 10
Incidence of aggression (%)	17 ± 5^*	36 ± 11
Plasma 3α,5α-THP levels (not-tested rats — nmol/l)	110 ± 9^#	84 ± 10
Plasma 3α,5α-THP levels (tested rats — nmol/l)	168 ± 21^*	90 ± 13
Midbrain 3α,5α-THP levels (not-tested rats — nmol/g)	27 ± 5^#	16 ± 4
Midbrain 3α,5α-THP levels (tested rats — nmol/g)	18 ± 2^*	10 ± 1

Indicates analyses of variance or t-tests reveal a significant difference (p<0.05) between groups.

Indicates analyses of variance or t-tests reveal a tendency for differences (p<.0.10) between groups.