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A genetic predisposition on its own, without superimposed environmental risk factors, is not thought to give rise to schizophrenia. [ 4 ] [ 6 ] Environmental risk factors are many, and include pregnancy complications , prenatal stress and nutrition , and adverse childhood experiences .
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 epigenetics of schizophrenia is the study of how inherited epigenetic changes are regulated and modified by the environment and external factors and how these changes influence the onset and development of, and vulnerability to, schizophrenia. Epigenetics concerns the heritability of those changes, too.
BY SETH BORENSTEIN WASHINGTON (AP) -- Scientists have linked more than 100 spots in our DNA to the risk of developing schizophrenia, casting light on the mystery of what makes the disease tick.
The causes of schizophrenia may include genetic and environmental factors. [7] Genetic factors include a variety of common and rare genetic variants . [ 21 ] Possible environmental factors include being raised in a city , childhood adversity, cannabis use during adolescence, infections, the age of a person's mother or father , and poor ...
Polimeni and Reiss' group selection hypothesis of schizophrenia emphasizes the shamanism, or shaman-like behaviors, arguing that there is a need to consider the genetic root of such behaviors. [2] One related hypothesis argues that schizophrenia helps maintain charismatic leaders who utilize symptoms, such as paranoia and delusions, to create ...
The self-domestication hypothesis for evolution of schizophrenia observes the importance our self-domesticated evolution, with emphasis on its contribution to the altered genetic development of the neural crest and our relaxed social cultural niche. Adaptations related these domesticated changes favored the emergence of complex cognitive ...
A systematic comparative analysis of shared and unique genetic factors highlighted key gene sets and molecular processes underlying six major neuropsychiatric disorders: attention deficit hyperactivity disorder, anxiety disorders, autistic spectrum disorders, bipolar disorder, major depressive disorder, and schizophrenia. [9]
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