brain

On average, children take two to three years to learn to decode English. It is the most difficult alphabetic writing system in the world to master. In Finland, where there are no exceptions, each letter always stands for the same sound and children take only a few months to learn to decode. Like a muscle, the brain grows with practice. Brem (2010) showed that the visual word form area in the human brain begins to appear in the brain scans of non-readers after as little as five hours of training in decoding.  A number of brain regions are involved in reading and comprehension.