Main samples VBM table
| Publication | Definition | Gray matter vol. (SD) |
| Carmona 2007... | Individuals with OCD | 773.34 (55.80) ml |
| Christian 20... | Individuals with OCD | N/A |
| Gilbert 2008... | Individuals with OCD | N/A |
| Gilbert 2008... | Individuals with OCD | N/A |
| Kim 2001... | Individuals with OCD | 849.80 (83.30) ml |
| Pujol 2004... | Individuals with OCD | 739.00 (82.00) ml |
| Riffkin 2005... | Individuals with OCD | N/A |
| Soriano-Mas ... | Individuals with OCD (2nd sample) | N/A |
| Szeszko 2008... | Individuals with OCD | 776.00 (69.00) ml |
| Valente 2005... | Individuals with OCD | 826.78 (43.59) ml |
| van den Heuv... | Individuals with OCD | 685.00 (74.00) ml |
| Yoo 2008... | Individuals with OCD | 740.01 (65.63) ml |