Does anyone's brain "work in unison"? As far as I know, it's a bunch of subsystems all sending their signals to each other, and some higher-level network that m

Does anyone's brain "work in unison"? As far as I know, it's a bunch of subsystems all sending their signals to each other, and some higher-level network that makes 'sense' of the torrent of information and directs the attention to the various subsystems' outputs as needed.