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bioRxiv · 10.1101/2020.10.23.350322

Time scale separation of information processing between sensory and associative regions

Sorrentino, P.·Rabuffo, G.·Rucco, R.·Baselice, F.·Troisi Lopez, E.·Liparoti, M.·Quarantelli, M.·Sorrentino, G.·Bernard, C.·Jirsa, V.
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Abstract

A hierarchy of local timescales with a back (sensory)-to-front (prefrontal) gradient reflects brain region specialization. However, cognitive processes emerge from the coordinated activity across regions, and the corresponding timescales should refer to the interactions rather than to regional activity. Using edgewise connectivity on magnetoencephalography signals, we demonstrate a reverse front-to-back gradient when non-local interactions are prominent. Thus, the timescales are dynamic and reconfigure between back-to-front and front-to-back patterns.

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Sorrentino, P., Rabuffo, G., Rucco, R., Baselice, F., Troisi Lopez, E., Liparoti, M., Quarantelli, M., Sorrentino, G., Bernard, C., Jirsa, V.. 2020-10-24. Time scale separation of information processing between sensory and associative regions. https://doi.org/10.1101/2020.10.23.350322

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