| 0.3Precentral Gyrus | width=0.1ohbm98-precen.eps | 0.4 Bounded by central sulcus, precentral sulcus, cingulate sulcus and Sylvian fissure |
| 0.3Superior Frontal Gyrus | width=0.1ohbm98-sfg.eps | 0.4Bounded by precentral sulcus, frontomarginal sulcus, interhemispheric fissure and superior frontal sulcus) |
| 0.3Middle Frontal Gyrus | width=0.1ohbm98-mfg.eps | 0.4Bounded by precentral sulcus, superior frontal sulcus, inferior frontal sulcus and frontomarginal sulcus |
| 0.3Medial Frontal Gyrus | width=0.1ohbm98-mdfg.eps | 0.4Bounded by interhemispheric fissure, superior rostral sulcus, precentral sulcus and cingulate sulcus |
| 0.3Inferior Frontal Gyrus | width=0.1ohbm98-ifg.eps | 0.4Bounded by inferior frontal sulcus, Sylvian fissure, frontomarginal sulcus and lateral orbital sulcus |
| 0.3Lateral Fronto-Orbital
Gyrus |
width=0.1ohbm98-lofg.eps | 0.4Bounded by frontomarginal, lateral orbital sulcus, inferior rostral sulcus |
| 0.3Medial Fronto-Orbital
Gyrus |
width=0.1ohbm98-mofg.eps | 0.4Bounded by inferior rostral sulcus, superior rostral sulcus and cingulate sulcus |