1 - Scientific background and rational Use of sensory cues is essential for execution and correction of voluntary movements. The motor areas and their regulation is of special interest in patients with schizophrenia as there is clear evidence of motor abnormalities independent of the effects of antipsychotic medication, even before the onset of the disorder. Sensorimotor abnormalities have been proposed as a valid endophenotype in schizophrenia. Our global objective is to study and provide vulnerability markers for schizophrenia.