Table 4. Number of nodes (mean and standard deviation in %) lying in the specific regions of the Z-P parameter space separately for women and men under the three kissing conditions.

Roles	female			male
	RK	K-SA	HK	RK	K-SA	HK
R1	0.9 (1.7)	1.2 (2.2)	0.9 (2.1)	0.5 (0.5)	0.3 (0.4)	0.8 (1.1)
R2	47.3 (24.1)	49.9 (27.4)	50.7 (16.3)	44.4 (20.0)	46.2 (25.9)	48.9 (19.1)
R3	46.8 (25.0)	44.3 (24.3)	44.0 (18.6)	50.0 (22.9)	47.9 (28.1)	46.2 (21.2)
R4	2.4 (3.4)	3.3 (3.6)	1.9 (2.3)	3.6 (4.1)	3.3 (4.4)	2.0 (2.6)
R5	2.7 (3.3)	1.4 (1.9)	2.5 (2.8)	1.5 (2.2)	2.3 (3.0)	2.0 (2.9)

R1 = ultra-peripheral nodes, R2 = non-hub peripheral nodes, R3 = non-hub connector nodes, R4 = hub peripheral nodes, R5 = hub connector nodes, RK = romantic kissing, K-SA = kissing while performing silent arithmetic, and HK = hand kissing. Note that there were no kinless nodes (R6) at all.