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This is known as the pathogenic theory of schizophrenia or germ theory of schizophrenia. It is a pathogenic theory of disease in which it is thought that a proximal cause of certain cases of schizophrenia is the interaction of the developing fetus with pathogens such as viruses , or with antibodies from the mother created in response to these ...
The causes of schizophrenia that underlie the development of schizophrenia, a psychiatric disorder, are complex and not clearly understood.A number of hypotheses including the dopamine hypothesis, and the glutamate hypothesis have been put forward in an attempt to explain the link between altered brain function and the symptoms and development of schizophrenia.
Cannabis use may be a contributory factor in the development of schizophrenia, potentially increasing the risk of the disease in those who are already at risk. [122] [123] [124] The increased risk may require the presence of certain genes within an individual. [22] Its use is associated with doubling the rate. [125]
The main opposition to the drift hypothesis is the social causation thesis, which says social class position is causally related to the probability of mental illness. John W. Fox, from the University of Northern Colorado, conducted a study in 1990 that looked at previous studies concerning the relationship between social class and mental illness.
It has been suggested that acute neuroinflammation during early fetal development may contribute to schizophrenia pathogenesis. The risk of schizophrenia is higher among those who experienced prenatal maternal viral infections like influenza, rubella, measles, and polio as well as bacterial or reproductive infections. The brain is highly ...
The development of the hypothesis allowed for the integration of the GABAergic and oscillatory abnormalities into the converging disease model and made it possible to discover the causes of some disruptions. [2] Like the dopamine hypothesis, the development of the glutamate hypothesis developed from the observed effects of mind-altering drugs.
Motor disorders are disorders of the nervous system that cause abnormal and involuntary movements. They can result from damage to the motor system. [1]Motor disorders are defined in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) – published in 2013 to replace the fourth text revision – as a new sub-category of neurodevelopmental disorders.
Simple-type schizophrenia is a sub-type of schizophrenia included in the International Classification of Diseases , [1] in which it is classified as a mental and behaviour disorder. [2] It is not included in the current Diagnostic and Statistical Manual of Mental Disorders ( DSM-5 ) or the upcoming ICD-11 , [ 3 ] effective 1 January 2022. [ 4 ]