Table 6 Mean and standard deviation of volumes in each group in the Yale sample, and Cohen’s d for the difference between groups. Note that groups are not matched for age and IQ, and that Cohen’s d does not account for these factors
From: Evidence against the “normalization” prediction of the early brain overgrowth hypothesis of autism
| Yale group means | |||
|---|---|---|---|
| ASD mean (SD) | TDC mean (SD) | Cohen’s d | |
| TBV | 1233.38 (110.9) | 1196.13 (108.09) | 0.34 |
| GMV | 728.94 (71.39) | 692.51 (65.65) | 0.53 |
| WMV | 504.96 (58.38) | 504.06 (55.87) | 0.02 |
| Cortical GMV | 554.87 (60.33) | 521.45 (55.1) | 0.58 |
| Cortical WMV | 476.16 (55.99) | 475.63 (53.6) | 0.01 |
| Cerebellum | 141.32 (14.18) | 139.58 (13.73) | 0.12 |
| Cerebellar GMV | 112.52 (11.76) | 111.15 (11.24) | 0.12 |
| Cerebellar WMV | 28.79 (4.03) | 28.43 (3.53) | 0.1 |
| Lateral ventricles | 15.99 (8.58) | 13.29 (6.65) | 0.36 |
| Third ventricle | 0.94 (0.29) | 0.86 (0.23) | 0.32 |