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Originally, the term was created to distinguish physical (termed "organic") causes of mental impairment from psychiatric (termed "functional") disorders, but during the era when this distinction was drawn, not enough was known about brain science (including neuroscience, cognitive science, neuropsychology, and mind-brain correlation) for this ...
This is a list of major and frequently observed neurological disorders (e.g., Alzheimer's disease), symptoms (e.g., back pain), signs (e.g., aphasia) and syndromes (e.g., Aicardi syndrome). There is disagreement over the definitions and criteria used to delineate various disorders and whether some of these conditions should be classified as ...
Piotrowski signs are ten signs of organic brain disease that can be found from having patients analyze Rorschach tests. [1] They were identified by Zygmunt Piotrowski, who analyzed the Rorschach test interpretations of patients with organic brain disease, central nervous system diseases (non-cerebral), and conversion disorder. He found that the ...
Cases involving these symptoms are classified as functional disorders ("functional" in this context is usually contrasted with the old term "organic disease"). For example, in functional neurologic disorder (FND), those affected present with various neurological symptoms such as functional seizures , numbness , paresthesia , and weakness ...
Mitochondrial encephalopathy: Metabolic disorder caused by dysfunction of mitochondrial DNA. Can affect many body systems, particularly the brain and nervous system. Acute necrotizing encephalopathy, rare disease that occurs following a viral infection. Glycine encephalopathy: A genetic metabolic disorder involving excess production of glycine.
Due to Integrative Agnosia, the patients take information from a top-down manner, using stored knowledge to retrieve an objects perceptual properties. It is much more difficult for patients to use a bottom-up method, or perceiving through a visual stimulus, because of the inability to accurately code the patterns in the visual short-term memory.
Psychoorganic syndrome is a combination of various symptoms that are caused by organic changes in the brain. [5] The exact component of the solvents that causes the neurological disorder is difficult to isolate due to worker generally being exposed to mixtures of various grades, compositions, and purity of solvents.
Several recent studies have advanced the field using neuroimaging techniques. In 2005, Dr. Masatoshi Inagaki used magnetic resonance imaging (MRI) to measure differences in brain volume between breast cancer patients exposed to chemotherapy and subjects unexposed. Subjects were tested at two periods: one year after surgery, and again at three ...