Family History Dyslexia… Is Dyslexia Genetic? The short answer is yes.
Dyslexia often runs in families. So if your child has dyslexia, there’s a chance you or another relative may have it too.
About 40% of siblings of children with dyslexia might have the same reading issues. Up to 49% of parents of kids with dyslexia may have it too.
Dyslexia is regarded as a neurobiological condition. It is genetic in origin. This means that individuals can inherit this condition from a parent. Dyslexia Genetics affect the performance of the neurological system. Specifically, the parts of the brain responsible for learning to read.
Dyslexia is not the result of poor teaching, instruction or upbringing. It is not linked to intelligence. Science has found several genes associated with reading and language processing issues.
The Dyslexia Trust in the UK is one of the research centres. They say that one of the strongest risk factors for dyslexia is having a close relative with reading problems. Or if there is a family history dyslexia.
Comparing identical and non-identical twins has shown that genes account for about 50% of your reading skills. Upbringing and environment the other 50%. The dyslexia genetic trait is around 50%.
But dyslexia is a complex cognitive problem. It is several levels removed from the proteins whose synthesis genes control. Working out how the dyslexia genetic factors interact with environmental factors to cause reading problems is difficult.
Dyslexia is strongly hereditary. So is whether you are right or left handed. The Dyslexia Trust didn’t find any special relationship between reading problems and handedness. Hand skill was the same in our dyslexic families as in the population at large.
Even though non right handedness did not seem to be strongly associated with reading problems, overall motor dexterity did correlate with reading ability.
In the research, the faster the subjects were at moving pegs from one set of holes to another with either hand, the better they were at reading. Thus accurate motor timing and coordination seem to be conducive to good reading.
This is an exciting time for dyslexia research. For the first time, there is the opportunity to study the biological and molecular mechanisms underlying the causes of dyslexia.
Eventually this research will lead to a better definition of dyslexia. It will provide better diagnostic tools to identify different categories of dyslexic individuals and more targeted intervention strategies.
If you have a Family History Dyslexia or a child/family member struggling with dyslexia you need to act now as the research findings are still years away. We have online courses for children and adults so go to the How We Help page and have a look at the course overviews.