Search results
Results from the WOW.Com Content Network
Subtypes of schizophrenia are no longer recognized as separate conditions from schizophrenia by DSM-5 [62] or ICD-11. [63] Before 2013, the subtypes of schizophrenia were classified as paranoid, disorganized, catatonic, undifferentiated, and residual type. [64]
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] Instead it is believed that, despite its maladaptive nature, schizophrenia has been either selected for throughout the years or exists as a selective by-product.
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.
'This will turn out to be the most important break in the disease,' the Broad Institute's director Eric Lander said.
Instead of viewing schizophrenia as a by-product of brain evolution, one model presents schizophrenia to be one extreme of a sexually selected fitness indicator. [26] This model hypothesizes schizophrenia to be a side effect in sexual selection for certain traits. Sexual selection concerns the mating choices of humans and other animals.
There has been a dramatic increase in the numbers of older adults with schizophrenia. [76] Onset may happen suddenly or may occur after the slow and gradual development of a number of signs and symptoms, a period known as the prodromal stage. [10] Up to 75% of those with schizophrenia go through a prodromal stage. [77]
"Hidden Valley Road" is a true story about an American family with twelve children, six of whom are diagnosed with schizophrenia. The eldest, Donald Galvin, was born in 1945, and the youngest, Mary (who later changed her name to Lindsay) was born in 1965. By the mid-1970s, six of the ten boys were diagnosed with schizophrenia.
Laws were introduced to compel authorities to deal with those judged insane by family members and hospital superintendents. Although originally based on the concepts and structures of moral treatment, they became large impersonal institutions overburdened with large numbers of people with a complex mix of mental and social-economic problems. [58]