FIGURE 3.

Collective temporal behaviors. (A) Cycle asynchrony indicates how much lead or lag performers produced in one cycle of the collective rhythmic pattern, expressed as a ratio to the initial metronome tempo. It revealed that both performers’ keypress timing preceded each other’s keypress timing at the 10 ms ATL and then lagged each other’s behavior by increasing amounts at the longer 20 and 40 ms ATLs. (B) Collective tempo indicates the tempo estimated at each unison note position. Over the course of a trial performers sped up in the 10 ms ATL condition, maintained a consistent tempo in the 20 ms ATL condition, and got substantially slower in the 40 ms ATL condition. Error bars show standard error.