• Hyperlexia from the Center for Speech and Language Disorders. Hyperlexia is a syndrome that is characterized by a child’s precocious ability to read (far above what would be expected at their age, between 2 and 5), significant difficulty in understanding and using verbal language (or a profound nonverbal learning disability) and significant problems during social interactions.
  • Hyperlexia – K12 Academics education resource. Hyperlexia is a condition in which the main characteristics are an above normal ability to read accompanied with a below normal ability to understand spoken language. The symptoms are closely related to those of autism and some consider it to be an autism spectrum disorder whereas others contest it to be a completely different condition.
  • The Hyperlexia Parents Network contains articles, stories, a forum, parent support, and information about a book written by a parent of a child with Hyperlexia.
  • What is Hyperlexia? Hyperlexia has many characteristics similar to autism and some consider it to be an autism spectrum disorder. Because of its close association with autism, hyperlexia is often misdiagnosed. The main characteristics of hyperlexia are an above normal ability to read coupled with a below normal ability to understand spoken language. The severity, frequency, and grouping of the symptoms listed on this page will determine an actual diagnosis.  New

Fragile X Syndrome

What is Fragile X Syndrome?

Fragile X syndrome (FXS) is the most common inherited cause of autism and intellectual disabilities. It affects 1 in 4,000 boys and 1 in 6,000 girls worldwide.Fragile X syndrome occurs when a single gene on the X chromosome shuts down. This gene makes a protein needed for normal brain development. In FXS it does not work properly, the protein is not made, and the brain does not develop as it should.

FRAXA Research Foundation

Fragile X syndrome is a genetic disorder characterized by mild-to-moderate intellectual disability. The average IQ in males is under 55, while about two thirds of females are intellectually disabled. Physical features may include a Long and narrow face; High-arched palate; Large, protruding ears (both); Hyperextensible finger joints;Hyperextensible (‘double-jointed’) thumbs; Flat feet; Soft skin; Postpubescent macroorchidism (large testicles in men after puberty); and Hypotonia (low muscle tone).


Synonyms of Fragile X Syndrome

  • fragile site, folic acid type, rare, Fra(X)(Q27.3)
  • marker X syndrome
  • Martin-Bell syndrome

Reference Links