Free chapter from book on Dyscalculia

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Dyscalculia exists in a number of different varieties, each involving a specific difficulty in solving mathematical tasks. It corresponds with mathematical performance to dyslexia in the area of reading. The majority of children and adults who are subject to dyscalculia have the ability to read and the ability to understand what is read unimpaired, although about 20–30 % of those who are subject todyscalculia are characterized by having difficulties  readingand with mathematics. They often require extensive mental strain to carry out even simple arithmetic tasks. They countusing their fingers as a visual aid far into the upper grades. Difficulties of this sort are categorized as automatisation difficulties.

Children and adults subject to dyscalculianever-theless tend  to be of normal intelligence, but often present an uneven picture in their results on intelligence tests. Their problems reflect not emotional issues but difficulties in mentally connecting with specific types of thought processes.

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Brain furrow may cause maths problem

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Scientists have homed in on a brain region that leaves some people struggling with mathematics. Their research might point up better ways to teach numbers1.

The study looked at people with dyscalculia – the mathematical equivalent of dyslexia. Up to 6% of children are thought to suffer from the condition; they toil with times tables and can find it tough to add small numbers even as adults.

Dyscalculics have abnormal pulses of activity in a brain furrow called the right intraparietal sulcus, find Nicolas Molko of INSERM, the French Institute of Health and Medical Research in Paris, and his colleagues. The fissure helps the mind to conjure spatial images.

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