Gwenaelle Douaud1, Eugene Duff1, Adrian Groves1, Thomas Nichols1,2, Saad Jbabdi1, Christian Tamnes3, Lars Westlye3, Andreas Engvig3, Kristine Walhovd3, Anders Fjell3, Heidi Johansen-Berg1, and Steve Smith1
1FMRIB Centre, University of Oxford, Oxford, United Kingdom, 2University of Warwick, Coventry, United Kingdom, 3University of Oslo, Oslo, Norway
It is believed that the resting-state networks closely relate to the underlying anatomical connectivity and grey matter structure but cannot be understood in those terms alone. Here, we show that a purely data-driven approach used to co-model three complementary types of grey matter information on a large, healthy population covering most of the lifespan uncovers the entire repertoire of canonical functional networks. We further demonstrate that the modes of variation of grey matter volume across all participants forming these structural networks spatially co-vary with cortical area, except in primary sensory areas where they also partially co-vary with cortical thickness.