The prevalent research considers that a phonological deficit is the root cause of dyslexia. Possikle causes for dyslexia, including educational, biological, and psychological factors, are discussed in chapter 5. Kelli sandmanhurley helps explain the causes of dyslexia. Evidence from brain imaging suggests that people with dyslexia do not activate the left hemisphere the language side in the brain as much when reading as nondyslexic readers, and that there is less engagement of the areas of the brain which match letters with sounds. It can also help you get the support your child needs. Its linked to genes, which is why the condition often runs in families. Children with a family history of dyslexia are at increased risk of having the disorder themselves. It is an inherited condition, which appears to affect more boys than girls. The cause of the developmental abnormality remains unknown, but a few risk factors seem to play a role. It would seem that people with dyslexia share a cluster of genes, which may, it is believed, account for the variations in the nature and extent of specific learning difficulties. It appears to be linked to certain genes that affect how the brain processes reading and language, as well as risk factors in the environment. The precise cause of dyslexia is not fully understood.
Pdf background children are diagnosed as dyslexic when their reading performance is much below that which could be expected for their. Clear differences in the way the brain is wired up during development have been found in dyslexics. The purpose of ida is to pursue and provide the most comprehensive range of information and services that address. Researchers have recently identified specific genes identified as possibly contributing to the signs and symptoms of dyslexia.
The exact cause of dyslexia is not clear, although the condition is generally thought to run in families. In addition, auditory training, or targeting the underlying biological causes of dyslexia, for example by improved nutrition, particularly with omega 3 fish oils, can help greatly. Knowing the causes of dyslexia can help you better understand your childs challenges. And learn about dyslexia treatments and strategies you can try at home. The causes of dyslexia what the latest science reveals. Lets take a quick look at the brain to lay some groundwork for understanding what we know so far about what causes dyslexia. The author argues that currently provided definitions of dyslexia are inappropriate because. The root of the disorder seems to lie in a problem that surfaces while a childs brain is developing early on. The purpose of this module is to provide an understanding of the causes and consequences of dyslexia. Dyslexia is a learning disorder that affects your ability to read, spell, write, and speak. The causes invariably consist of a number of factors and includes some kind of acquired or hereditary neurological deviation from what may be considered normal. Possikle causes for dyslexia, including educational. Mispronouncing names or words, or problems retrieving words.
But researchers are looking at a number of factors, including the role of genes and the brain. To determine the causes of dyslexia, experiments must demonstrate under which. Dyslexia is a learning disorder involving difficulty reading due to problems identifying speech sounds and learning how they relate to letters. The degree of difficulty a child with dyslexia has with reading, spelling, andor.
Some common dyslexia signs and symptoms in teens and adults include. If youre in a hurry, the content most directly related to causes begins at the one minute mark brain basics. Dyslexia is a specific learning difficulty, which causes problems primarily in the development of literacy skills. Pdf the prevention, diagnosis, and treatment of dyslexia. Youre more likely to have dyslexia if your parents, siblings, or other family members have it.
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