b9 wrote:
functional illnesses are illness like schizophrenia where a person is predisposed, and an environmental trigger is the catalyst.
organic ones are where there is actual structural changes in the brain that account for the condition.
Schizophrenics actually do have organic changes to the brain. This has been demonstrated in numerous studies. Here are a few examples below:
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UCLA brain researchers using a powerful new technique have created the first images showing the devastating impact of schizophrenia on the brain. The findings, published in the Sept. 25 issue of the Proceedings of the National Academy of Sciences*, show how a dynamic wave of tissue loss engulfs the brains of schizophrenic patients in their teen-age years....
The scientists, at UCLA and the National Institute of Mental Health, employed magnetic resonance imaging (MRI) technology to scan a group of teenagers repeatedly as they developed schizophrenia. Using a new image analysis method that detects very fine changes in the brain, the scientists detected gray matter loss of more than 10 percent first in the parietal, or outer, regions of the brain; this loss spread to engulf the rest of the brain over five years.
Patients with the worst brain tissue loss also had the worst symptoms, which included hallucinations, delusions, bizarre and psychotic thoughts, hearing voices, and depression. Schizophrenia affects an estimated 1 percent of Americans. Its causes are unknown, and the disease typically hits without warning in the late teens or 20s.
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Since 1976, many studies have consistently revealed enlarged lateral ventricular volumes in schizophrenia patients as compared to controls; in fact, this may be the most replicated finding in schizophrenia research. The significance of enlarged ventricular volume remains to be understood, as this condition also occurs in hydrocephalus, Alzheimer’s Disease, and Huntington’s Chorea.
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Several studies have reported reduced basal ganglia volumes in schizophrenia patients. It has been postulated that abnormal basal ganglia volumes may explain the abnormal involuntary movements and, possibly, the cognitive dysfunction seen in schizophrenia.
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Consistent with a recent shape analysis study of CC volumes, we found that the size of the [corpus callosum] was reduced in first-episode patients compared to both psychotic and normal controls. We also found these patients to have reduced volumes in regions of the corpus callosum, including the anterior genu, anterior body, isthmus, and anterior splenium. Furthermore, the normal age-related increase in size in CC volumes was absent in the first-episode schizophrenia patients, suggesting abnormal CC neurodevelopment in schizophrenia.
I don't consider schizophrenics to be neurotypical.
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