Fig. 12.

Projection onto cortical surface (representing the whole cortical thickness) of the quantitative map of MR soma signal fraction f_is for the average over the whole cohort of 25 healthy subjects. In correspondence of the principal Brodmann areas we report histological images from literature, showing the typical soma arrangement and density used as criteria to delineate Brodmann areas. We find a very good correspondence between f_is values and the expected pattern of soma density from histology (high, intermediate and low soma density as indicated).