Table 1.

DTI parameters in the regions with positive regression between FA and social sniffing time.

Cluster		Average ± Standard deviation (R2 with sniffing time, p value for regression)
Location	No. of voxels	MD (μm2/ms)	FA	λ1 (μm2/ms)	λ2 (μm2/ms)	λ3 (μm2/ms)
Secondary visual cortex	217	0.69 ± 0.12 (0.67, 0.001)	0.24 ± 0.05 (0.49, 0.012)	1.09 ± 0.14 (0.58, 0.004)	0.54 ± 0.15 (0.47, 0.014)	0.45 ± 0.11 (0.65, 0.001)
Secondary visual cortex	293	0.71 ± 0.05 (0.59, 0.004)	0.20 ± 0.03 (0.80, 0.000)	1.02 ± 0.06 (0.06, 0.448)	0.63 ± 0.06 (0.46, 0.015)	0.48 ± 0.05 (0.84, 0.000)
Somatosensory cortex	1316	0.71 ± 0.03 (0.54, 0.007)	0.26 ± 0.03 (0.73, 0.000)	1.10 ± 0.06 (0.00, 0.983)	0.61 ± 0.05 (0.21, 0.130)	0.43 ± 0.04 (0.79, 0.000)
Lateral orbital cortex	376	0.67 ± 0.03 (0.00, 0.883)	0.21 ± 0.03 (0.79, 0.000)	0.98 ± 0.05 (0.12, 0.260)	0.59 ± 0.05 (0.00, 0.985)	0.45 ± 0.04 (0.39, 0.029)
Right zona incerta / substantia nigra	545	0.58 ± 0.03 (0.02, 0.682)	0.30 ± 0.03 (0.74, 0.000)	0.89 ± 0.05 (0.36, 0.039)	0.52 ± 0.04 (0.22, 0.122)	0.32 ± 0.03 (0.63, 0.002)
Left zona incerta / substantia nigra	205	0.60 ± 0.02 (0.01, 0.706)	0.35 ± 0.03 (0.83, 0.000)	0.97 ± 0.05 (0.27, 0.083)	0.54 ± 0.03 (0.31, 0.062)	0.29 ± 0.03 (0.60, 0.003)
Left thalamus	1074	0.66 ± 0.07 (0.06, 0.443)	0.23 ± 0.04 (0.88, 0.000)	0.96 ± 0.09 (0.03, 0.573)	0.60 ± 0.09 (0.05, 0.499)	0.43 ± 0.05 (0.69, 0.000)
Right thalamus	292	0.58 ± 0.04 (0.08, 0.382)	0.35 ± 0.04 (0.68, 0.001)	0.93 ± 0.05 (0.04, 0.531)	0.51 ± 0.06 (0.06, 0.428)	0.29 ± 0.03 (0.55, 0.006)
Dorsal endopiriform claustrum	493	0.70 ± 0.05 (0.09, 0.353)	0.25 ± 0.04 (0.77, 0.000)	1.05 ± 0.11 (0.04, 0.527)	0.60 ± 0.04 (0.28, 0.078)	0.44 ± 0.05 (0.52, 0.009)
Entorhinal cortex	540	0.59 ± 0.03 (0.00, 0.899)	0.45 ± 0.05 (0.76, 0.000)	1.05 ± 0.06 (0.08, 0.386)	0.49 ± 0.05 (0.00, 0.998)	0.23 ± 0.03 (0.37, 0.036)