An article titled “Mapping the Structural Core of Human Cerebral Cortex” has been published in PLoS Biology. It is the work of collaborators from Indiana University, University of Lausanne, Ecole Polytechnique Fédérale de Lausanne, and Harvard Medical School. The abstract reads:
An analysis of the resulting large-scale structural brain networks reveals a structural core within posterior medial and parietal cerebral cortex, as well as several distinct temporal and frontal modules. Brain regions within the structural core share high degree, strength, and betweenness centrality, and they constitute connector hubs that link all major structural modules. The structural core contains brain regions that form the posterior components of the human default network. Looking both within and outside of core regions, we observed a substantial correspondence between structural connectivity and resting-state functional connectivity measured in the same participants. The spatial and topological centrality of the core within cortex suggests an important role in functional integration.
I wonder if this core, or a part of this core, represents the speculated seat of consciousness, a la Guilio Tononi’s information integration hypothesis.