Table 4.

Mean ± SEM number of c-Fos Immunoreactive Cells in the Regions with Significant Differences between the Vehicle (n = 8), 1 mg / kg Oxytocin (n = 8) and 100 mg / kg WAY 267,464 (n = 8) Conditions.

Region (Fig. 1)	Bregma	Vehicle	1 mg/ kg Oxytocin	100 mg / kg WAY 267,464
Areas with significant WAY 267,464- and oxytocin-induced c-Fos expression above vehicle
18. Paraventricular hypothalamic nucleus	−1.80	8.7 ± 2.7	72.4 ± 13.5^a	102.4 ± 17.2^a
20. Central amygdala	−2.80	2.9 ± 0.7	25.5 ± 3.2^a	20.6 ± 3.3^a
35. Lateral parabrachial nucleus	−9.30	2.6 ± 1.3	18.0 ± 0.6^a	13.1 ± 2.0^a
37. Nucleus of the solitary tract	−13.68	1.5 ± 0.7	39.3 ± 5.3^a	32.6 ± 6.2^a
Areas with significant WAY 267,464-induced c-Fos expression above oxytocin and / or vehicle
1. Medial prefrontal cortex / Prelimbic cortex	+2.70	9.5 ± 2.0	3.9 ± 1.4	12.0 ± 2.8^b
12. Median preoptic nucleus	−0.26	4.9 ± 1.0	8.4 ± 1.2	11.9 ± 2.2^a
16. Supraoptic nucleus (× 40)	−1.30	4.6 ± 2.6	11.0 ± 4.0	41.5 ± 9.3^a,^b
27. Medial amygdala (posterodorsal)	−3.14	6.0 ± 1.5	6.0 ± 1.7	15.8 ± 1.7^b
34. Periaqueductal grey (ventrolateral)	−8.72	3.4 ± 1.0	6.9 ± 1.4	9.4 ± 1.8^a
Areas with significant oxytocin-induced c-Fos expression above WAY 267,464 and / or vehicle
36. Locus coeruleus	−9.68	0.1 ± 0.1	5.9 ± 1.3^a,^c	1.6 ± 0.8
Areas with significant oxytocin-induced c-Fos expression below WAY 267,464 and / or vehicle
26. Lateral habenula	−3.14	6.5 ± 1.8	1.1 ± 0.6^a,^c	6.3 ± 1.3
Areas with significant oxytocin-induced c-Fos expression above vehicle
11. Bed nucleus of the stria terminalis (dorsolateral nucleus) (× 40)	−0.26	3.1 ± 1.0	10.8 ± 2.4^a	6.1 ± 1.1

Significantly different from vehicle;

Significantly different from oxytocin;

Significantly different from WAY 267,464. All counts were conducted at × 20 magnification, unless stated otherwise (× 40).