" lnsular region (fields 13 and 14). We have adhered to the cytologic convention of Brodmann ('09) whereby the insular region is coextensive with the claustrum along the rhinal fissure. "
" Field 14 is coextensive in its rostro-caudal dimen- sion with 13. It is readily distinguished on the basis of cytoarchitectonic criteria from medially adjacent parietal cortex. However, the transitions of field 14 with frontal field 10 rostrally and temporal field 36 caudally are gradual, and boundaries in the present map are somewhat arbitrarily drawn. "