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Autistic individuals tend to use different brain areas (yellow) for a movement task compared to a control group (blue). [30] The underconnectivity theory of autism posits that autistic people tend to have fewer high-level neural connections and less global synchronization, along with an excess of low-level processes. [31]
The folds of autistic human brains are found to experience slight shifts in location, early in brain development. Specifically, different patterns appear in the superior frontal sulcus, Sylvian fissure, inferior frontal gyrus, superior temporal gyrus, and olfactory sulci. [ 45 ]
For many autistic people, characteristics first appear during infancy or childhood and follow a steady course without remission (different developmental timelines are described in more detail below). [74] Autistic people may be severely impaired in some respects but average, or even superior, in others. [75] [76] [77]
Different underlying brain dysfunctions have been hypothesized to result in the common symptoms of autism, just as completely different brain types result in intellectual disability. [1] [5] In recent years, the prevalence and number of people diagnosed with the disorder have increased dramatically. There are many potential reasons for this ...
The physical underpinnings of the cause for differences in the memory of autistic people has been studied. Bachevalier suggests a major dysfunction in the brain of an autistic individual resides in the neural mechanisms of the structures in the medial temporal lobe (MTL) and perhaps, more specifically the amygdaloid complex. [46]
It discusses Grandin's life experiences as a person with autism from the early days of scientific research on the topic and how advances in technology have revolutionized the understanding of autism and its connection to the brain. Different releases of the book came with alternative subtitles, including Exploring the Strength of a Different ...
They've used genetic engineering to breed over a dozen macaque monkeys with a flawed gene that triggers a rare form of autism in humans. The hope is that researchers can not only study how brains ...
Vitamin B12: The researchers found that, overall, B12 levels in the brain tissue of autistic children were three times lower than those of the brain tissue of children not affected by ASD. This lower-than-normal B12 profile persisted throughout life in the brain tissues of patients with autism. These deficiencies are not visible by conventional ...