“…Specific differences have been described for the ventricle-to-brain ratio, and higher heredity and poorer prognosis have been reported. Psychotic depressive syndromes are also characterized by more severe affective symptoms, higher rates of relapse and hospitalization, more treatment-refractory courses and longer episodes than non-psychotic syndromes [1,12,13]. Among the differences in symptom patterns are more anxiety, less insight into the illness, a higher incidence of guilt feelings, more ruminative and referential ideas and stronger agitation with a lower overall treatment response rate than in nondelusional depressive patients [1,12,14].…”