PT  - JOURNAL ARTICLE
AU  - Deco, Gustavo
AU  - McIntosh, Anthony R.
AU  - Shen, Kelly
AU  - Hutchison, R. Matthew
AU  - Menon, Ravi S.
AU  - Everling, Stefan
AU  - Hagmann, Patric
AU  - Jirsa, Viktor K.
TI  - Identification of Optimal Structural Connectivity Using Functional Connectivity and Neural Modeling
AID  - 10.1523/JNEUROSCI.4423-13.2014
DP  - 2014 Jun 04
TA  - The Journal of Neuroscience
PG  - 7910--7916
VI  - 34
IP  - 23
4099  - http://www.jneurosci.org/content/34/23/7910.short
4100  - http://www.jneurosci.org/content/34/23/7910.full
SO  - J. Neurosci.2014 Jun 04; 34
AB  - The complex network dynamics that arise from the interaction of the brain's structural and functional architectures give rise to mental function. Theoretical models demonstrate that the structure–function relation is maximal when the global network dynamics operate at a critical point of state transition. In the present work, we used a dynamic mean-field neural model to fit empirical structural connectivity (SC) and functional connectivity (FC) data acquired in humans and macaques and developed a new iterative-fitting algorithm to optimize the SC matrix based on the FC matrix. A dramatic improvement of the fitting of the matrices was obtained with the addition of a small number of anatomical links, particularly cross-hemispheric connections, and reweighting of existing connections. We suggest that the notion of a critical working point, where the structure–function interplay is maximal, may provide a new way to link behavior and cognition, and a new perspective to understand recovery of function in clinical conditions.