RT Journal Article
SR Electronic
T1 Interaction information along lifespan of the resting brain dynamics reveals a major redundant role of the default mode network
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 382705
DO 10.1101/382705
A1 Borja Camino-Pontes
A1 Ibai Diez
A1 Antonio Jimenez-Marin
A1 Javier Rasero
A1 Paolo Xu
A1 Charles C.Y. Bonifazi
A1 Sebastiano Stramaglia
A1 Stephan Swinnen
A1 Jesus M Cortes
YR 2018
UL http://biorxiv.org/content/early/2018/08/01/382705.abstract
AB Interaction Information generalizes the univariate Shannon Entropy to triplets of variables, allowing the detection of redundant or synergetic interactions in dynamical networks. Here, we calculated interaction information from functional magnetic resonance imaging and asked whether redundancy or synergy vary across brain regions and along lifespan. We found high overlapping between the pattern of high redundancy and the default mode network, and this occurred along lifespan. The pattern of high values of synergy, more heterogeneous and variable along lifespan, was overlapping with different cognitive domains, such as spatial and temporal memory, emotion processing and motor skills. Moreover, the amount of redundancy and synergy seem to be balanced along lifespan, suggesting informational compensatory mechanisms in brain networks.