Long-range connections between brain regions are scarce, but essential to speed up information transmission

The human brain is formed by a complex network of neural connections and most of them link neighboring brain regions, which are also the most studied to date. But a recent neuroscientific study by Pompeu Fabra University (UPF) and the University of Oxford, published in Proceedings of the National Academy of Sciences, has revealed that connections between distant brain regions, though rarer and less frequent, play a fundamental role in explaining brain dynamics.