Related Experiment Video
Updated: Aug 4, 2026
10:32
Development of a Virtual Reality Assessment of Everyday Living Skills
Published on: April 23, 2014
A comparative study on schizophrenic patients with dual diagnosis
J Modestin1, C J Gladen, S Christen
1Psychiatric University Hospital Zurich, Switzerland. modestin.sek@puk.zh.ch
Journal of Addictive Diseases
|January 5, 2002
Summary
Schizophrenia patients with co-occurring substance use disorders show significant differences based on drug type. Alcohol and cannabis users differ from "hard drug" users in age and social adjustment, impacting treatment needs.
Area of Science:
- Psychiatry
- Addiction Medicine
- Clinical Psychology
Background:
- Substance abuse is a complex factor in schizophrenia.
- Understanding specific substance use patterns is crucial for effective treatment.
Purpose of the Study:
- To investigate differences among schizophrenic patients with comorbid substance use disorders.
- To compare sociodemographic and clinical variables based on the type of substance used.
Main Methods:
- Retrospective chart review of 86 schizophrenic patients with substance use disorder and 56 with schizophrenia-only.
- Categorization of substance use into alcohol, cannabis, and "hard drugs" (opiates, cocaine).
Main Results:
- Confirmed hypotheses regarding opiate abuse prevalence and inter-group differences.
- Identified 18 alcohol, 18 cannabis, and 50 "hard drug" users.
- Schizophrenia patients with alcohol use disorder were older and better socially adjusted than those with "illegal" drug use.
Conclusions:
- Significant differences exist between schizophrenic patients with varying substance use disorders.
- Individualized therapeutic programs must consider specific substance use patterns and patient characteristics.
Related Concept Videos
01:27Psychosis: 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...
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...
01:17Schizophrenia
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.
01:26Positive Symptoms Schizophrenia: Hallucinations and Delusions
Schizophrenia is a complex psychiatric disorder characterized by a range of symptoms that significantly impact cognition, behavior, and emotional regulation. Among these, the positive symptoms stand out as they involve the addition or exaggeration of normal mental functions, deviating markedly from typical behavior and perception. Hallucinations and delusions are prominent positive symptoms, each profoundly affecting the individual's experience of reality.
Hallucinations
Hallucinations in...
Hallucinations
Hallucinations in...
01:30Negative and Cognitive Symptoms of Schizophrenia
Negative symptoms of schizophrenia indicate a reduction or absence of typical behaviors and emotional responses found in healthy individuals, while positive symptoms reflect an excess or distortion of normal functioning.
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
Negative Symptoms
Negative symptoms of schizophrenia manifest as deficits in normal emotional and behavioral functioning, profoundly impacting daily life. Individuals with schizophrenia often display a flat affect, characterized by a near-total absence of emotional expression,...
01:29Biological 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.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin studies.
01:29Psychological 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...