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The cause of deep dyslexia is damage in the left hemisphere of the brain. Deep dyslexia is usually classified as an acquired reading disorder, as opposed to a developmental dyslexia, in previously literate adults as a consequence of a brain injury. [2] [21] [10] [4] However, recently, developmental deep dyslexia has also been reported in ...
Research into potential genetic causes of dyslexia has its roots in post-autopsy examination of the brains of people with dyslexia. [37] Observed anatomical differences in the language centers of such brains include microscopic cortical malformations known as ectopias , and more rarely, vascular micro-malformations, and microgyrus —a smaller ...
The cerebellar theory of dyslexia asserts that the cause of dyslexia is an abnormality in the cerebellum (a region in the back of the brain), which in turn cause disruption in normal development, which causes issues with motor control, balance, working memory, attention, automatization, and ultimately, reading.
Dyslexia is a learning difficulty that primarily affects the skills involved in accurate and fluent word reading and spelling. Characteristic features of dyslexia are difficulties in phonological awareness, verbal memory and verbal processing speed. Dyslexia occurs across the range of intellectual abilities.
What is important about these arteries is their location. All of them supply blood to the back outer parts of the brain. [11] This part of the brain is also referred to as the posterior lateral part of the brain. In cases of pure alexia, locations are found in the section of the brain, specifically the temporo-occipital area. [10]
Neurodevelopmental disorders are a group of mental conditions affecting the development of the nervous system, which includes the brain and spinal cord.According to the American Psychiatric Association Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, published in 2013, these conditions generally appear in early childhood, usually before children start school, and can ...
When dyslexia was studied within children, it was found that dyslexic children were often stressed as well as mentally exhausted. These children would place little to no importance on their present state, a behavior that would continue into adulthood. [11] It remains unclear as to whether dyslexia is a symptom of dyschronometria, a cause, or ...
The underlying mechanisms of dyslexia result from differences within the brain's language processing. Dyslexia is diagnosed through a series of tests of memory, vision, spelling, and reading skills. Dyslexia is separate from reading difficulties caused by hearing or vision problems or by insufficient teaching or opportunity to learn.
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