Prediction errors in self- and externally-generated deviants

► N1-suppression effect is modified in response to self-initiated deviants (SID). ► Enhanced N2b and P3a is elicited by self- compared to externally-produced deviants. ► Specific predictions are generated in response to self-initiated sounds. ► Prediction errors (PE) are more salient in response to SIDs. ► The specificity of predictions forms the neural suppression and detection of PEs.