Hyperlexia They are extremely good at decoding language and thus often become very early readers. Some hyperlexic children learn to spell long words (such as "elephant") before they are two years old and learn to read whole sentences before they turn three. An fMRI study of a single child showed that hyperlexia may be the neurological opposite of dyslexia. The word hyperlexia is derived from the Greek terms "hyper" ("over") and "léxis" ("diction", "word"). Although hyperlexic children usually learn to read in a non-communicative way, several studies have shown that they can acquire reading comprehension and communicative language after the onset
Heterogeneous condition also define a "medical condition" as any illness, injury, or disease except for psychiatric illnesses. As it is more value-neutral than terms like "disease", the term "medical condition" is sometimes preferred by people with health issues that they do not consider deleterious. It is also preferred when etiology is not unique, because the word disease is normally associated to the cause of the clinical problems. On the other hand, by emphasizing the medical nature of the condition, this term is sometimes rejected, such as by proponents of the autism rights movement. The term is also used in specialized areas of