Table 3. GTNA metrics for IP and AP in all networks.

	Old group				Young group
Network	AP		IP		AP		IP
	Mean	SE	Mean	SE	Mean	SE	Mean	SE
N1 ( Table 1 )
Cluster coefficient	0.29	0.02	0.28	0.01	0.28	0.01	0.28	0.01
Degree	4.84	0.13	4.71	0.14	4.30	0.15	4.23	0.15
Density	0.24	0.01	0.24	0.01	0.21	0.01	0.21	0.01
Efficiency	0.55	0.01	0.54	0.01	0.51	0.01	0.51	0.01
Path length	1.97	0.03	1.98	0.04	2.14	0.07	2.16	0.07
Betweenness	21.3	0.70	21.4	0.78	25.0	1.48	25.4	1.45
Connection strength	1.21	0.03	1.18	0.03	1.10	0.04	1.08	0.04
N2 ( Table 2 )
Cluster coefficient	0.36	0.02	0.33	0.03	0.23	0.03	0.25	0.02
Degree	3.76	0.12	3.71	0.13	3.11	0.11	3.06	0.11
Density	0.34	0.01	0.34	0.01	0.28	0.01	0.28	0.01
Efficiency	0.58	0.01	0.58	0.01	0.53	0.01	0.53	0.01
Path length	1.72	0.04	1.74	0.04	1.96	0.06	1.99	0.06
Betweenness	9.67	0.46	9.90	0.49	12.5	0.67	12.9	0.76
Connection strength	1.15	0.04	1.13	0.04	0.98	0.03	0.97	0.02
Small world network measures
N1
Cluster coefficient	1.27	0.05	1.26	0.04	1.42	0.11	1.45	0.09
Path length	0.99	0.01	0.99	0.00	1.01	0.01	1.01	0.01
N2
Cluster coefficient	1.16	0.07	1.11	0.10	0.94	0.09	1.00	0.08
Path length	0.96	0.01	0.96	0.01	0.96	0.01	0.97	0.01