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. Author manuscript; available in PMC: 2011 Nov 14.
Published in final edited form as: Autism Res. 2010 Dec 2;3(6):350–358. doi: 10.1002/aur.162

Table 3.

Tensor coefficients and asymmetry indices by group and hemisphere. SD: standard deviation; CV: coefficient of variation; FA: fractional anisotropy; MD: mean diffusivity; DA: axial diffusivity; DR: radial diffusivity.

f Typically developing (TD)
N = 30		 Autism
N = 30		 Autism – TD
Left Right AI* Left Right AI Left Right AI
Mean (SD)
CV† 		Mean (SD)
CV		 Mean (SD)
CV		 Mean (SD)
CV		 Mean (SD)
CV		 Mean (SD)
CV		 Mean
(SD)		 Mean
(SD)		 Mean
(SD)
Superior temporal gyrus
Skewness 0.517
(0.049)
0.095		 0.502
(0.052)
0.103		 0.0303
(0.0969)
3.1956		 0.505
(0.040)
0.078		 0.517
(0.049)
0.095		 −0.0220
(0.1009)
4.5838		 −0.012
(0.063)		 0.015
(0.071)		 −0.0523
(0.1399)
FA 0.339
(0.020)
0.059		 0.327
(0.024)
0.073		 0.0373
(0.0529)
1.4182		 0.318
(0.024)
0.075		 0.318
(0.018)
0.057		 −0.0024
(0.0582)
؇ 		−0.021
(0.031)		 −0.009
(0.030)		 −0.0397
(0.0786)
MD (mm2/s) 0.657
(0.027)
0.041		 0.644
(0.020)
0.031		 0.0194
(0.0253)
1.3041		 0.671
(0.027)
0.040		 0.661
(0.029)
0.044		 0.0142
(0.0162)
1.1408		 0.014
(0.038)		 0.017
(0.035)		 −0.0052
(0.0300)
DA (mm2/s) 0.900
(0.035)
0.039		 0.870
(0.025)
0.029		 0.0336
(0.0380)
1.1310		 0.900
(0.031)
0.034		 0.888
(0.035)
0.039		 0.0132
(0.0337)
2.5530		 0.000
(0.047)		 0.018
(0.043)		 −0.0204
(0.0508)
DR (mm2/s) 0.535
(0.027)
0.050		 0.531
(0.023)
0.043		 0.0074
(0.0232)
3.1351		 0.556
(0.030)
0.054		 0.548
(0.029)
0.053		 0.01500
(0.0192)
1.2800		 0.021
(0.040)		 0.017
(0.037)		 0.0076
(0.0301)
Temporal stem
Skewness 0.622
(0.032)
0.051		 0.627
(0.035)
0.057		 0.0080
(0.0644)
8.0024		 0.620
(0.035)
0.057		 0.611
(0.032)
0.052		 0.0142
(0.0628)
4.4075		 −0.002
(0.047)		 −0.016
(0.047)		 0.0062
(0.0900)
FA 0.401
(0.021)
0.052		 0.383
(0.019)
0.050		 0.0463
(0.0384)
0.8294		 0.386
(0.019)
0.049		 0.370
(0.022)
0.059		 0.0439
(0.0440)
1.0023		 −0.015
(0.028)		 −0.013
(0.029)		 −0.0024
(0.0584)
MD (mm2/s) 0.701
(0.020)
0.029		 0.702
(0.019)
0.027		 −0.0028
(0.0177)
Ø		 0.714
(0.020)
0.028		 0.717
(0.023)
0.032		 −0.0037
(0.0162)
Ø		 0.013
(0.028)		 0.015
(0.030)		 −0.0009
(0.0240)
DA (mm2/s) 1.018
(0.028)
0.028		 1.001
(0.020)
0.020		 0.0164
(0.0225)
1.3720		 1.023
(0.021)
0.021		 1.010
(0.022)
0.022		 0.0128
(0.0143)
1.1172		 0.005
(0.035)		 0.009
(0.030)		 −0.0036
(0.0267)
DR (mm2/s) 0.542
(0.022)
0.041		 0.553
(0.023)
0.042		 −0.0205
(0.0252)
1.2293		 0.560
(0.023)
0.041		 0.570
(0.027)
0.047		 −0.0184
(0.0272)
1.4783		 0.018
(0.032)		 0.017
(0.035)		 0.0021
(0.0371)