Brain activity, measured with electrophysiological techniques, often shows oscillatory patterns. The temporal periodicity of these neural rhythms and their connection to various cognitive functions are extensively studied. Much less is known about their spatial organization, and in particular their traveling properties across the cortex. Measuring traveling waves with non-invasive techniques such as EEG or MEG presents technical and biophysical constraints.

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In the EU-funded WAVES project, we are developing a model-based neuroimaging approach which can circumvent these issues, paving the way for a more extensive study of brain rhythms.