Demographic characteristics and ESM variables of the different samples.

Sample I = Healthy control; Sample II = Twins from the general population; Sample III = Unaffected siblings of psychotic patients; Sample IV = Patients with psychotic disorder; Sample V = Patients with a history of a major depressive disorder currently displaying residual depressive symptoms.
aNumber of ESM reports when scores for both stressful event and NA are available,
bnumber of ESM report when scores for both pleasant event and PA are available.