Topic: amplitude coupling

The connectivity between pairs of brain regions is commonly assessed through the measurement of phase coherence or the correlation of their amplitudes. Despite large evidence linking these measures to brain functions and cognitive processes, a consensus on the mechanistic relationship between both types of coupling modes is lacking. We investigated the hypothesis that a causal relation exists between both types of functional coupling across multiple cortical areas. To this end, we utilized a multisite approach to obtain a time-resolved definition of phase and amplitude coupling parameters. Ana