Thilo womelsdorf et al published an article in science, 2007 jun 15; 316(5831):1609-12 entitled “MOdulation of neuronal interactions through neuronal synchronization.” In the abstract it is stated, “brain processing depends on the interactions between neuronal groups. those interactions are governed by the pattern of anatomical connections. . . . [the authors] found that the mutual influence among neuronal groups depends on the phase relation between rhythmic activities within the groups. phase relations supporting interactions between the groups preceded those interactions by a few milliseconds, consistent with a mechanistic role. these effects were specific in time, frequency, and space, and [it was proposed] that the pattern of synchronization flexibly determines the pattern of neuronal interactions.”