Previous studies have used EEG as a non-invasive method with high temporal resolution to examine biomedical markers of schizophrenia onset in 22q11.2 deletion syndrome (22q11.2 DS), a genetic disorder distinguished by a severe vulnerability to schizophrenia. Research investigating the auditory eventrelated potential (AERP) in these groups has reported an increased amplitude of the central N1 component in 22q11.2 DS and a decreased amplitude of this component in schizophrenia in an auditory gating paradigm, suggesting compromised auditory processing...