Dynamical incompatibilities in paced finger tapping experiments
Researchers studied how people correct timing errors when tapping to a metronome using two types of period changes: step changes and phase shifts. They found that responses to these two perturbations are dynamically incompatible when tested separately, suggesting they require different underlying systems. However, when both perturbation types are randomly mixed in the same experiment, a single dynamical system can describe all responses, challenging the idea that separate mechanisms handle different error types.