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. Author manuscript; available in PMC: 2010 Jul 18.
Published in final edited form as: Biol Psychiatry. 2009 Jun 11;66(4):320–326. doi: 10.1016/j.biopsych.2009.04.024

Table 3.

Volumes and cortical thickness at time 01 and time 02 in the autism group and controls:

Structures Autism1 Autism 2 Paired t-test Controls 1 Controls 2 Paired t-test
Df (17) Df (15)
M SD M SD t p M SD M SD t p
Volume (cc)
TBV 1345.96 129.42 1347.49 126.21 −0.2 0.85 1318.27 93.41 1332.79 88.10 −2.91 0.011
TWM 478.48 43.33 491.03 51.09 −1.6 0.13 483.24 36.63 493.54 29.33 −2.28 0.038
TGM 867.48 92.91 856.47 81.08 1.96 0.066 835.04 65.15 839.24 64.17 −0.92 0.371
Cortical Thickness (mm)
Frontal 5.34 0.27 4.82 0.21 4.04 0.001 5.14 0.19 4.94 0.15 2.011 0.063
Temporal 5.06 0.32 4.72 0.26 2.23 0.039 4.56 0.15 4.62 0.15 −0.68 0.509
Parietal 5.02 0.33 4.42 0.19 3.92 0.001 4.66 0.15 4.38 0.19 2.53 0.023
Occipital 4.24 0.28 3.78 0.18 5.27 0.000 3.98 0.17 3.84 0.08 1.90 0.077
Total brain 4.98 0.26 4.52 0.19 3.99 0.001 4.70 0.13 4.54 0.14 1.76 0.099

TBV: Total Brain Volume; TWM: Total White Matter; TGM: Total Grey Matter