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Related Concept Videos

Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
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...
Schizophrenia01:17

Schizophrenia

Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those diagnosed.
Psychosis and Antipsychotic Drugs: Overview01:28

Psychosis and Antipsychotic Drugs: Overview

The term "psychosis" refers to a spectrum of mental disorders characterized by abnormal thoughts, perceptions, and behaviors. It can manifest as mood disorders, dementia, delirium with psychotic features, substance-induced psychosis with psychotic features, brief psychotic disorder, delusional disorder, schizoaffective disorder, and schizophrenia. Among all these disorders, schizophrenia is the most common psychotic disorder, affecting 1% of the worldwide population. Psychotic symptoms in all...
Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.
Psychosis: Goals of Pharmacotherapy01:26

Psychosis: Goals of Pharmacotherapy

Antipsychotic drugs are a crucial treatment method for acute and chronic psychoses, bipolar illness, and behavioral disorders. The selection of these drugs depends on several factors, including the state of the disease, clinical judgment, possible drug interactions, and the patient's sensitivity to adverse effects. In immediate scenarios, such as delirium and dementia, short-term treatment with low doses of high-potency typical or atypical agents can effectively manage symptom exacerbation. For...

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Updated: Jun 17, 2026

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
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Published on: September 8, 2021

Why do patients with schizophrenia smoke?

Georg Winterer1

  • 1Department of Psychiatry, Heinrich-Heine University Duesseldorf, Duesseldorf, Germany. georg.winterer@uni-duesseldorf.de

Current Opinion in Psychiatry
|January 7, 2010
PubMed
Summary
This summary is machine-generated.

Patients with schizophrenia smoke heavily, often to self-medicate symptoms and antipsychotic side effects. Understanding these reasons is crucial for developing targeted smoking cessation programs and treatments.

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Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
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Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
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Last Updated: Jun 17, 2026

Standardized Data Acquisition for Neuromelanin-Sensitive Magnetic Resonance Imaging of the Substantia Nigra
05:14

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Published on: September 8, 2021

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
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Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
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Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

Area of Science:

  • Psychiatry
  • Neuroscience
  • Pharmacology

Background:

  • Smoking is highly prevalent in schizophrenia patients (70-80%).
  • This high smoking rate leads to increased morbidity, mortality, and financial burden.
  • Understanding the reasons for smoking is vital for effective clinical management and research.

Purpose of the Study:

  • To investigate the underlying reasons for high smoking rates in schizophrenia.
  • To inform the development of tailored smoking cessation programs.
  • To guide research into novel treatments targeting the nicotinic system.

Main Methods:

  • Review of existing literature on smoking in schizophrenia.
  • Analysis of proposed mechanisms for nicotine use.
  • Investigation into the self-medication hypothesis.

Main Results:

  • Initial theories suggested smoking aids drug metabolism and reduces antipsychotic side effects.
  • Emerging evidence indicates nicotine improves psychiatric symptoms, particularly negative and cognitive ones.
  • Molecular mechanisms underlying nicotine's effects are under active investigation.

Conclusions:

  • Smoking in schizophrenia is not merely a 'bad habit'.
  • Self-medication of clinical symptoms and drug side effects are significant factors.
  • Further research is needed to elucidate molecular pathways and develop targeted interventions.