Frequency of gyral patterns of inferior parietal lobule in 40 healthy brains studied with VR images, in 20 specimens studied anatomically, and in 50 specimens studied anatomically by Naidich et al10
| Right Hemisphere (%) | Left Hemisphere (%) | |||||
|---|---|---|---|---|---|---|
| VR | Specimens | Naidich et al10 (specimens) | VR | Specimens | Naidich et al10 (specimens) | |
| Typical | 42.5 | 45 | 48 | 35 | 20 | 28 |
| preSMG | 2.5 | 5 | 4 | 17.5 | 35 | 16 |
| preAG | 17.5 | 20 | 16 | 0 | 5 | 28 |
| Others | 37.5 | 30 | 32* | 47.5 | 45 | 28* |
| (preSMG + preAG) | (0) | (15) | − | (2.5) | (0) | − |
| (SMG + AG) | (12.5) | (10) | − | (37.5) | (40) | − |
| (Pattern not identifiable) | (25) | (5) | − | (7.5) | (5) | − |
Note:—preSMG indicates additional gyri intercalated between the postcentral sulcus (postCS) and the supramarginal gyrus (SMG); preAG, additional gyri positioned between the SMG and the angular gyrus (AG).
* Others were described as pattern not identifiable in the report by Naidich et al10.