Re-evaluating the performance of the nonlinear prediction error for the detection of deterministic dynamics

► Nonlinear prediction error is widely used to test for weak nonlinearity in EEG. ► Two implementations of nonlinear prediction error are re-evaluated. ► Methods perform poorly for time series having periodicities typical of normal EEG. ► Nonlinear prediction error on its own is not sufficient for detecting nonlinearity in EEG.