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Symptoms of schizophrenia simplex include an absence of will, impoverished thinking and flattening of affect. There is a gradual deterioration of functioning with increased amotivation and reduced socialization. [6] [7] It is considered to be rarely diagnosed and is a schizophrenia without psychotic symptoms. [8]
Schizophrenia is a mental disorder [17] [7] characterized variously by hallucinations (typically, hearing voices), delusions, disorganized thinking and behavior, [10] and flat or inappropriate affect. [7]
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.
In other words, an individual does not have to be experiencing delusions or hallucinations to receive a diagnosis of schizophrenia. A second symptom could be negative symptoms, or severely disorganized or catatonic behavior. [5] Only two symptoms are required for a diagnosis of schizophrenia, resulting in different presentations for the same ...
Cognitive symptoms of schizophrenia involve disturbances in executive functions, working memory impairment, and inability to sustain attention. [ 1 ] Given the high numbers of individuals diagnosed with schizophrenia (nearly 1% of modern-day populations), it is unlikely that the disorder has arisen solely from random mutations. [ 2 ]
Basic symptoms are those that are present in every case of schizophrenia, whereas accessory symptoms vary depending on the patient. Bleuler defined primary symptoms as those that are directly related to neurobiological processes. He defined secondary symptoms as behavioral reactions to primary symptoms. Differentiating these symptoms ...
Schizophrenia has been considered an evolutionary puzzle due to the combination of high aggregate heritability, relatively high prevalence (~1%), and reduced reproductive success. One explanation could be increased reproductive success by close relatives without symptoms but this explanation seems unlikely
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 ...
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