Constrained spherical deconvolution-based tractography and tract-based spatial statistics show abnormal microstructural organization in Asperger syndrome

Table 2 Correlation of autism spectrum quotient (AQ), empathy quotient (EQ) and systemizing quotient (SQ) with fractional anisotropy of the white matter tracts

WM ^a tracts	AQ ^a and FA ^a		EQ ^a and FA ^a		SQ ^a and FA ^a
WM ^a tracts	Correlation ^b	Pvalue ^c	Correlation ^b	Pvalue ^c	Correlation ^b	Pvalue ^c
ATR ^a L	0.3010	0.08871	−0.3551	0.04255	0.07749	0.6682
ATR ^a R	0.1772	0.3239	−0.2403	0.1779	0.1201	0.5055
SCC ^a	0.09482	0.5997	−0.06295	0.7278	0.01877	0.9174
CST ^a L	0.1720	0.3385	0.1040	0.5648	−0.004599	0.9797
CST ^a R	0.2603	0.1435	0.05810	0.7481	0.07059	0.6963
IFO ^a L	0.2675	0.1323	−0.3043	0.08511	0.04044	0.8232
IFO ^a R	0.3869	0.02613	−0.3213	0.06829	0.1149	0.5242
ILF ^a L	0.2861	0.1065	−0.2277	0.2026	0.1736	0.3339
ILF ^a R	0.3160	0.07321	−0.2515	0.1580	0.1161	0.5199
SLF ^a L	0.3189	0.07049	−0.1911	0.2866	0.1285	0.4759
SLF ^a R	0.2730	0.1242	−0.1050	0.5608	0.04742	0.7933
UNC ^a L	0.2994	0.09054	−0.07811	0.6657	0.1500	0.4047
UNC ^a R	0.1613	0.3700	−0.08445	0.6403	0.09923	0.5827

^aAQ, Autism spectrum quotient; EQ, Empathy quotient; SQ, Systemizing quotient; WM, white matter; FA, fractional anisotropy; ATR, anterior thalamic radiation; SCC, splenium of corpus callosum; CST, corticospinal tract; IFO, inferior fronto-occipital fasciculus; ILF, inferior longitudinal fasciculus; SLF, superior longitudinal fasciculus; UNC, uncinate fasciculus.
^bThe correlations were calculated for all subjects.
^cSignificant P values (P <0.05) are written in bold.