There has been a series of recent in the past few decades on brain synchronization. Unfortunately, it's hard to tell whether it's due to the similarity of the t

There has been a series of recent in the past few decades on brain synchronization. Unfortunately, it's hard to tell whether it's due to the similarity of the task itself (so two people see and pay attention to the same stimulus as the game naturally progresses) or due to some similar predictions by separate people (so that they are "on the same page" and anticipating each other's actions). I wish there was some sort of control to disambiguate between synchrony due to sensory processing or due to action prediction. Perhaps different games that emphasize the sensory aspect or the action prediction aspect? Uri Hassan has done some really thoughtful work exploiting the brain synchrony from sensory processing to understand the processing itself, such as finding when people pay attention (more synchrony) or figuring out which brain regions process meaning rather than sound (synchrony from Russian vs English version of a sentence).