Table 4.

Section 1: The mean graphic metrics (± standard deviations) of 3-hinges and 2-hinges; Section 2: P-values of two sample t-tests for the graphic metric differences between species on each cortical folding pattern

		DEG	STR	BET	EFF	CLU	PAR
Section 1
h3	H	0.55 ± 1.20	0.59 ± 1.28	0.37 ± 1.44	−0.06 ± 0.83	−0.05 ± 0.77	0.18 ± 0.97
	C	0.46 ± 1.26	0.53 ± 1.43	0.34 ± 1.35	0.19 ± 0.98	0.04 ± 0.89	0.10 ± 0.96
	M	0.14 ± 0.98	0.18 ± 1.14	0.07 ± 0.91	0.21 ± 1.10	0.15 ± 1.04	0.05 ± 0.99
h2	H	0.14 ± 0.93	0.10 ± 0.92	0.06 ± 0.92	−0.03 ± 0.92	−0.01 ± 0.89	0.12 ± 0.98
	C	0.07 ± 1.02	0.07 ± 1.02	0.06 ± 1.02	0.06 ± 1.03	0.03 ± 1.01	0.02 ± 0.98
	M	0.08 ± 1.04	0.09 ± 1.12	0.05 ± 1.04	0.09 ± 1.05	0.06 ± 1.03	−0.02 ± 1.00
Section 2
h3	H vs. C	4.20 × 10−3	0.036	0.45	7.70 × 10−31	9.83 × 10−6	3.77 × 10−6
	H vs. M	1.54 × 10−23	3.11 × 10−20	8.28 × 10−10	5.71 × 10−20	1.84 × 10−13	2.78 × 10−12
	C vs. M	1.99 × 10−11	2.40 × 10−10	3.14 × 10−8	0.86	5.38 × 10−3	3.39 × 10−2
h2	H vs. C	4.82 × 10−6	0.05	0.89	1.90 × 10−11	1.51 × 10−3	3.40 × 10−8
	H vs. M	1.70 × 10−3	0.83	0.80	2.69 × 10−11	6.42 × 10−5	3.65 × 10−12
	C vs. M	0.80	0.34	0.84	0.29	0.26	4.92 × 10−2

The metrics were z-score transformed across subjects within each species.

Abbreviations: h3 3-hinge, h2 2-hinge, H human, C chimpanzee, M macaque, DEG degree, STR strength, BET betweenness, EFF efficiency, CLU clustering coefficient, PAR participation