Table 1.

Intra-MPOA injections of an OTA inhibit certain aspects of copulation in sexually experienced male rats.

Treatment	Intromission latency (s)	Frequency of AGI	Intromission ratio (2)
Vehicle	46.5 ± 20.0	2.1 ± 0.9	0.82 ± 0.11
O 50ng	64.9 ± 30.2	1.2 ± 0.4	0.41 ± 0.09*a
T 200ng	65.9 ± 37.0	0.6 ± 0.3#a	0.56 ± 0.06**a
A 1µg	362.7 ± 148.2*a#bc	3.0 ± 0.9*b**c	0.50 ± 0.05*a

Note. Values are given as mean ± SEM.

s, seconds; AGI, anogenital investigation; (2), second copulatory series; MPOA, medial preoptic area; OTA, oxytocin receptor antagonist.

^#p < 0.10.

^*p < 0.05.

^**p < 0.01.

^aDifferent from vehicle.

^bDifferent from 50 ng OTA.

^cDifferent from 200 ng OTA.