I Aetiological Models.- Basic Concepts.- Concepts of Schizophrenia: Current Developments and Future Perspectives.- Affect Logic and Schizophrenia.- Stimulus Barrier Model of Schizophrenia: Convergence of Neurobiological and Developmental-Psychological Factors.- Risk Studies.- Adoption Studies on Schizophrenia.- Fetal Neural Development and Adult Schizophrenia.- Childhood Development and Schizophrenia.- Neurobiological Models.- Schizophrenia, Second-Order Representation and the Brain.- Morphological Disturbances in the Brains of Schizophrenics.- Impairment of Perception and Recognition of Faces, Facial Expression and Gestures in Schizophrenic Children and Adolescents.- Signs of Differential Stimulus Processing Problems: A Comment on Event-Related Potentials in Young Schizophrenic and Autistic Subjects.- II Therapeutic Approaches.- Individual Psychotherapy.- New Insights in the Psychotherapy of Adolescent Schizophrenics.- Family Therapy.- The Systemic Approach to the Therapy of Schizophrenia.- The Development of Boundary Disturbances in Families with a Schizophrenic Adolescent.- Systems Consultation for Psychosis: A Biopsychosocial Integration of Systemic and Psychoeducational Approaches.- Pharmacotherapy.- Current Status and Perspectives of Pharmacotherapeutic Research Related to Schizophrenic Psychoses.- Pharmacotherapy of Schizophrenia in Childhood and Adolescence.