Subject showing no severe or progressive somatic pathology, including neurological pathology (head injury, epilepsy, tumor process or multiple sclerosis causing EEG changes incompatible with the observation of ERP characteristics of both psychiatric disorders explored)
Subject showing a diagnosis of schizophrenia or a diagnosis of bipolar affective disorders, as defined in the DSM IV-TR, in time of inclusion.
Subject showing no disorder related to the use of a substance according to DSM IV-TR during the last 12 months prior to enrollment.
Subject not showing another psychiatric disorder according to DSM IV-TR (axis 1 disorders), including schizoaffective disorder or a delusional disorder (not schizophrenic).
