Hi all,
I have a hard time relating the boundaries of the insula defined by Freesurfer (Destrieux a2009s) with what is out there in the literature. Most of what is out there is described in terms of anterior and posterior insula, and I'm not sure if most of them match well with what is described in Destrieux et al. paper (http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2937159/?tool=pubmed) as the "anterior" and "posterior" insula as described below:
"The central sulcus of the insula ran antero-inferiorly from the superior segment of the circular segment of the insula. It was a small sulcus that was not always visible on its whole course on the inflated views. It divided the insula in two parts: the short insular gyri [G_insular_short, 18] (anterior) and the long insular gyrus (posterior). Due to their small size, the central sulcus of the insula and the long insular gyri were grouped in the same label [G_Ins_lg_and_S_cent_ins, 17]."
Based on these definitions, would it be fair to say: Anterior insula = "G_insular_short" and "S_circular_insula_ant" Posterior insula = "G_Ins_lg_and_S_cent_ins" and "S_circular_insula_inf"
Thank you for your help, Nasim