Table 1.

Aggregate g-ratio results. Significance of regression terms in the multiple linear regression analysis, and year of apparent minimum aggregate g-ratio value for each brain structure investigated. NA indicates that the linear model was the best fit to the data, with the age minimum therefore occurring at the youngest or oldest age decade. Bold indicates significance; all p-values presented are obtained after FDR correction.

	Age		Sex		Age2		Year of Minimum g-ratio
	p	F	p	F	p	F
WB	0.21	2.0	0.37	1.1	0.01	8.3	52.2
FL	5×10 −4	15.1	0.31	1.9	0.01	9.0	45.1
OL	0.3	1.2	0.57	0.3	0.01	9.2	53.3
PL	5×10 −4	15.6	0.31	3.1	0.01	12.4	46.6
TL	0.14	2.8	0.32	1.5	0.04	5.4	50.1
CRB	3×10 −4	18.8	0.1	7.7	0.01	9.2	43.9
IC	0.01	9.4	0.31	2.0	0.63	0.2	NA
BCC	2×10 −3	11.6	0.14	5.0	0.04	5.2	43.3
GCC	0.96	0.0	0.32	1.4	0.15	2.2	NA
SCC	0.03	3.7	0.14	5.8	0.08	3.5	47.4
ATR	3×10 −4	17.8	0.39	0.8	0.04	5.9	41.4
CST	2×10 −8	47.3	0.39	0.9	0.01	12.2	39.3
FM	0.28	1.4	0.31	2.1	0.04	5.3	52.0
Fm	0.04	5.3	0.31	2.4	0.09	3.1	45.0
IFOF	0.04	5.5	0.31	2.1	0.09	3.2	45.0
ILF	0.11	3.3	0.31	1.7	0.04	5.2	49.5