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These rapid evolutionary changes, in some cases, may impede normal development within the social brain. [14] [15] As schizophrenia is foremost a disorder of the consciousness, it has been suggested that schizophrenia exists as an unwanted byproduct of the evolution of the prefrontal cortex and other brain regions constituting the social brain. [13]
The question of how schizophrenia could be primarily genetically influenced, given that people with schizophrenia have lower fertility rates, is a paradox. It is expected that genetic variants that increase the risk of schizophrenia would be selected against, due to their negative effects on reproductive fitness .
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.
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.
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.
Famous People With Schizophrenia Zelda Fitzgerald. As the wife of The Great Gatsby writer F. Scott Fitzgerald and a talented writer and artist in her own right, Zelda Fitzgerald is best-known for ...
Through MRIs, psychiatrists can see specific structural differences in the brains of people with schizophrenia and bipolar disorder. These differences include volume of gray matter, neuropathological size differences variations and cortical thickness, which are associated with cognitive differences on tests.
People with schizophrenia can have a job or actually speak to people or can do things themselves," said Hammer. Schizophrenia is a brain disease and patients' symptoms run a spectrum ...
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