Perceptual and Cognitive Enhancement With an Adaptive Timing Partner: Electrophysiological Responses to Pitch Change

When 2 people tap together, they adjust their timing to their partner. We investigated whether having an adaptive partner leads to better pitch perception and cognition (measured by electrophysiological mismatch negativity [MMN] and N400 responses to pitch change) compared with having a nonadaptive partner. In the nonadaptive condition, people tapped along to 3 tones generated by the computer at a fixed 800 ms interonset interval (IOI). In the …