Dichotomies and Other Distinctions in Schizophrenia.- Positive and Negative Signals: A Conceptual History.- Positive and Negative Symptoms: Assessment and Validity.- Assessment of Negative Symptoms: Instruments and Evaluation Criteria.- Methodological Problems in Identifying and Measuring First-Rank Symptoms of Schizophrenia.- Anhedonia and the Amotivational State of Schizophrenia.- Constituting Reality - Its Decline and Repair in the Long-Term Course of Schizophrenic Psychoses: The Intentionality Model.- Negative Symptoms in Schizophrenia: Relationships to Positive Symptoms and Outcome.- Negative Symptoms: A Critique of Current Approaches.- Are There Two Types of Schizophrenia? True Onset and Sequence of Positive and Negative Syndromes Prior to First Admission.- Dependence, Independence or Interdependence of Positive and Negative Symptoms.- Long-Term Monomorphism of Negative and Positive Schizophrenic Episodes.- Premorbid and Sociodemographic Features of Schizophrenia with Positive and Negative Initial Episodes.- Long-Term Outcome of Patients with a Positive Initial Episode Versus Patients with a Negative Initial Episode.- The Concept of Positive and Negative Schizophrenia in Child and Adolescent Psychiatry.- Negative Symptoms in the Long-Term Course of Childhood Schizophrenia: A Discussion Contribution.- The Negative/Positive Dichotomy: Does It Make Sense from the Perspective of the Genetic Researcher?.- Genetic Transmission of Negative and Positive Symptoms in the Biological Relatives of Schizophrenics.- Neuropathological and Brain Imaging Studies in Positive and Negative Schizophrenia.- Explorations of Dopamine and Noradrenaline Activity and Negative Symptoms in Schizophrenia: Concepts and Controversies.- Typical Neuropleptics in the Treatment of Positive and Negative Symptoms.- The Effect of Clozapine and Other Atypical Antipsychotic Drugs on Negative Symptoms.- The Treatment of Positive and Negative Schizophrenic Symptoms with Dopamine Agonists.- Nonpharmacological Treatment Concepts of Negative Symptomatology.- The Demise of the Kraepelinian Binary Concept and the Aetiological Unity of the Psychoses.- Positive and Negative Symptomatology: The State of Affairs.

Dichotomies and Other Distinctions in Schizophrenia.- Positive and Negative Signals: A Conceptual History.- Positive and Negative Symptoms: Assessment and Validity.- Assessment of Negative Symptoms: Instruments and Evaluation Criteria.- Methodological Problems in Identifying and Measuring First-Rank Symptoms of Schizophrenia.- Anhedonia and the Amotivational State of Schizophrenia.- Constituting Reality - Its Decline and Repair in the Long-Term Course of Schizophrenic Psychoses: The Intentionality Model.- Negative Symptoms in Schizophrenia: Relationships to Positive Symptoms and Outcome.- Negative Symptoms: A Critique of Current Approaches.- Are There Two Types of Schizophrenia? True Onset and Sequence of Positive and Negative Syndromes Prior to First Admission.- Dependence, Independence or Interdependence of Positive and Negative Symptoms.- Long-Term Monomorphism of Negative and Positive Schizophrenic Episodes.- Premorbid and Sociodemographic Features of Schizophrenia with Positive and Negative Initial Episodes.- Long-Term Outcome of Patients with a Positive Initial Episode Versus Patients with a Negative Initial Episode.- The Concept of Positive and Negative Schizophrenia in Child and Adolescent Psychiatry.- Negative Symptoms in the Long-Term Course of Childhood Schizophrenia: A Discussion Contribution.- The Negative/Positive Dichotomy: Does It Make Sense from the Perspective of the Genetic Researcher?.- Genetic Transmission of Negative and Positive Symptoms in the Biological Relatives of Schizophrenics.- Neuropathological and Brain Imaging Studies in Positive and Negative Schizophrenia.- Explorations of Dopamine and Noradrenaline Activity and Negative Symptoms in Schizophrenia: Concepts and Controversies.- Typical Neuropleptics in the Treatment of Positive and Negative Symptoms.- The Effect of Clozapine and Other Atypical Antipsychotic Drugs on Negative Symptoms.- The Treatment of Positive and Negative Schizophrenic Symptoms with Dopamine Agonists.- Nonpharmacological Treatment Concepts of Negative Symptomatology.- The Demise of the Kraepelinian Binary Concept and the Aetiological Unity of the Psychoses.- Positive and Negative Symptomatology: The State of Affairs.