Related Experiment Video
Updated: Aug 15, 2026

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
Published on: September 8, 2021
[Pathophysiology of schizophrenia and its impact on pharmacotherapy]
C G Widschwendter1, W W Fleischhacker
1Abteilung für Biologische Psychiatrie, Universitätsklinik für Psychiatrie, Medizinische Universität Innsbruck/Osterreich.
Abstract:
Schizophrenia is a severe psychiatric illness with a lifetime morbidity risk of around 1 %. Symptoms include hallucinations, delusions, poverty of thought and emotion and social withdrawal and cognitive deficits. Although newer antipsychotics affecting multiple neurotransmitter receptors facilitate therapy, many patients still do not achieve full response. Despite intensive study, the molecular etiology of schizophrenia remains enigmatic in many ways. The dopamine hypothesis of schizophrenia still plays an important role, although pharmacological studies, brain imaging analyses and genetic research indicate additional dysfunctions of glutamate, GABA and serotonin transmission. This article reviews the pathophysiological background of the disorder, its implications for pharmacological treatment and possible directions for future research.
Insights
Schizophrenia, a severe mental disorder, affects about 1% of people. While treatments exist, understanding its complex causes involving dopamine, glutamate, and serotonin is key for better therapies.
Area of Science:
- Neuroscience
- Psychiatry
- Molecular Biology
Context:
- Schizophrenia is a debilitating psychiatric disorder with a 1% lifetime morbidity risk.
- Core symptoms include hallucinations, delusions, cognitive deficits, and social withdrawal.
- Current antipsychotic therapies offer partial response for many patients.
Purpose:
- To review the current understanding of schizophrenia's pathophysiology.
- To discuss the implications of neurochemical imbalances for treatment.
- To explore future research directions in schizophrenia.
Summary:
- Schizophrenia's molecular etiology remains incompletely understood.
- The dopamine hypothesis is central, but glutamate, GABA, and serotonin dysfunctions are also implicated.
- Research integrates pharmacological, neuroimaging, and genetic data.
Impact:
- Informing the development of more effective schizophrenia treatments.
- Highlighting the need for research into complex neurotransmitter interactions.
- Providing a foundation for future etiological and therapeutic studies.
Related Concept Videos
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within the...
Psychosis: Goals of Pharmacotherapy
Psychosis and Antipsychotic Drugs: Overview
Biological Causes of Schizophrenia
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.
Drug Therapy
Antianxiety Medications
Psychological and Sociocultural Causes of Schizophrenia
