Communication between Brain Areas Based on Nested Oscillations Article - Avril 2017

Mathilde Bonnefond, Sabine Kastner, Ole Jensen

Mathilde Bonnefond, Sabine Kastner, Ole Jensen, « Communication between Brain Areas Based on Nested Oscillations  », eNeuro, avril 2017, ENEURO.0153-16.2017. ISSN 2373-2822


Unraveling how brain regions communicate is crucial for understanding how the brain processes external and internal information. Neuronal oscillations within and across brain regions have been proposed to play a crucial role in this process. Two main hypotheses have been suggested for routing of information based on oscillations, namely communication through coherence and gating by inhibition. Here, we propose a framework unifying these two hypotheses that is based on recent empirical findings. We discuss a theory in which communication between two regions is established by phase synchronization of oscillations at lower frequencies (<25 Hz), which serve as temporal reference frame for information carried by high-frequency activity (>40 Hz). Our framework, consistent with numerous recent empirical findings, posits that cross-frequency interactions are essential for understanding how large-scale cognitive and perceptual networks operate.

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