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The diathesis-stress model, also known as the vulnerability–stress model, is a psychological theory that attempts to explain a disorder, or its trajectory, as the result of an interaction between a predispositional vulnerability, the diathesis, and stress caused by life experiences.
Another paradigm, introduced by Zubin and Spring in 1977, was the stress-vulnerability model where the individual has unique characteristics that give him or her strengths or vulnerabilities to deal with stress, a predisposition for schizophrenia. More recently, with the decoding of the human genome, there had been a focus on identifying ...
The risk of enlarged ventricles on brain scan (associated with schizophrenia symptoms and biologically suggestive of Emil Kraepelin's dementia praecox) was greatly increased if the subjects had both a higher genetic load for schizophrenia and lower birthweight. The investigators suggested that in utero insults may specifically stress those with ...
This contrasted the popular Diathesis-Stress Model of Schizophrenia, [4] which suggested the disorder results from the interaction of predisposed individual vulnerability and external stressors. Although both models have a biopsychosocial framework, they differ in the emphases placed on each component (i.e., biological, psychological and social ...
Schizophreniform disorder is a type of mental illness that is characterized by psychosis and closely related to schizophrenia.Both schizophrenia and schizophreniform disorder, as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), have the same symptoms and essential features except for two differences: the level of functional impairment and the duration of symptoms.
Symptoms in Schizophrenia, a 1938 silent film. Basic symptoms of schizophrenia are subjective symptoms, described as experienced from a person's perspective, which show evidence of underlying psychopathology. Basic symptoms have generally been applied to the assessment of people who may be at risk to develop psychosis. Though basic symptoms are ...
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.
The early diathesis-stress model was developed by Meehl. [26] It suggested that diathesis was a single gene, called schizogene. It led to a personality development, called schizotypic personality. Individuals who did not have schizotypic personality would not express the symptoms of schizophrenia, no matter what stress they experienced.
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