Dyslexia: Is the Shoe Perhaps on the Wrong FootSusan du Plessis Reading is the most important skill that a child must acquire at school, because one must learn to read to be able to read to learn. The implication of this is that the child who is a poor reader will usually also be a poor learner. Unfortunately poor reading skills, and therefore poor learning skills, have become a reality for an alarming number of people. The $14 million National Adult Literacy Survey of 1993 found that even though most adults in this survey had finished high school, 96% of them could not read, write, and figure well enough to go to college. Even more to the point, 25% were plainly unable to read. Even more alarming is that reading difficulties are not limited to people who are environmentally, culturally or economically disadvantaged. Many children come from good homes, go to good schools and score average to above average on IQ tests. Yet, they battle to learn to read, and many never succeed. Children with reading difficulties share a number of common symptoms. They are inclined to reverse letters or words, to omit letters, to lose their place, to remember little of what they have read, or to read with poor comprehension. These children are considered to suffer from a learning disability LD, commonly called dyslexia. According to the Orton Dyslexia Society at least one in every ten of otherwise able people has serious dyslexia problems. The Foundation of Children with Learning Disabilities states that learning-disabled children represent more than ten million of the total population of the U.S.A. Estimates of learning-disabled students being dyslexic vary between 70 and 80 percent. FIND THE CAUSE TO FIND A CURE Most problems can only be solved if one knows what causes the problem. A disease such as scurvy claimed the lives of thousands of seamen during long sea voyages. The disease was cured fairly quickly once the cause was discovered, viz. a Vitamin C deficiency. A viable point of departure in LD research would therefore be to ask the question, “What is the CAUSE of dyslexia” The idea that dyslexia is a certifiable biological disorder, a physical problem that could be diagnosed and treated accordingly, gained credence during the 1960s and 1970s, giving rise to an armada of theories. One such a theory states that dyslexia is the result when the link between the language, hearing and comprehension centers of the brain is somehow misconfigured during fetal development. Another theory states that dyslexia is caused by “faulty wiring in the brain,” whereas another holds that a subtle impairment of vision may be responsible, while yet another believes that a cerebellar-vestibular dysfunction may be responsible for the learning disability. All these theories – most of them blaming some difference in structure between the brain of the dyslexic and that of the so-called normal reader – have lead to nothing at all. Despite all these theories and all the intervention efforts based on them, not to mention the vast amounts of money expended in the process, the numbers of dyslexics continue to escalate. Except for the fact that proof of a neurological deficit still eludes the researchers, this theory leaves many questions unanswered. If dyslexia has a neurological basis, why is this supposedly non-contagious “ailment” on the increase Compare the present situation with, for example, that of a century ago. In 1910 the literacy rate in the U.S.A. was so high it was predicted, “the public schools will in a short time practically eliminate illiteracy.” In 1935, a survey of the 375,000 men working in the Civilian Conservation Corps – a government-sponsored work project to provide employment – found an illiteracy rate of 1.9 percent. It is most noteworthy that this last figure was found among men primarily of low socio-economic status. It is even more noteworthy that the illiteracy rates of the first half of the twentieth century reflected, for the most part, people who had never had the advantage of schooling. It is also impossible to explain how a neurological dysfunction can be more prevalent in specific areas or countries. While the National Commission on Excellence in 1983 warned that the American nation was “at risk,” remedial reading facilities were not needed at all in Japan due to the rarity of reading problems. Some would argue that reading problems were virtually nonexistent in Japan because their written language is easier than our Latin alphabet. That, however, is simply not true. The Japanese Kanji ideograms consist of 1,850 characters. In addition there are two Kana syllabaries, |
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