Research assistant Ethan Willbrand and PhD student Benjamin Parker of the Cognitive Neuroanatomy Lab published a new study uncovering a sulcus in posterior cingulate cortex (PCC) that is absent from neuroanatomical atlases. Variability in the location and morphology of this novel sulcus, termed the inframarginal sulcus (ifrms), is predictive of individual differences in macroanatomical and microstructural features of PCC, in addition to the location of functional regions of the lateral frontoparietal network implicated in cognitive control. The findings from this study provide support for Sanides’ classic hypothesis that tertiary sulci may serve as landmarks within association cortices.
You can read the paper here: Uncovering a tripartite landmark in posterior cingulate cortex | Science Advances