Fig. 1.

Cingulum reconstructions for two individual participants (upper and lower). The data shown in Fig. 1 upper are from the left hemisphere, the data in Fig. 1 lower are from the right hemisphere. The various parasagittal views show: (i) the ‘standard cingulum’, (ii) the ‘subgenual cingulum’, (iii) the ‘retrosplenial cingulum’, (iv) the ‘unrestricted parahippocampal cingulum’, and (vi) the ‘restricted parahippocampal cingulum’. The hemisphere placed in the centre (v) shows the relative positions of the subgenual, retrosplenial, and parahippocampal cingulum regions when they are overlaid in each individual case. The arrow in section (i) points to the two sites used to determine the mid rostral–caudal point of the corpus callosum. It can be seen from sections (ii)–(vi) that these tracts do not appear to occupy the same space around the corpus callosum. The locations of AND ROIs are shown as white bars, while the one NOT ROI (restricted parahippocampal cingulum, (vi) is shown as an orange bar.