dyslexia

/dis lek"see euh/, n. Pathol.
any of various reading disorders associated with impairment of the ability to interpret spatial relationships or to integrate auditory and visual information.
[1885-90; < NL < Gk dys- DYS- + léx(is) word + -ia -IA]

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Chronic neurological disorder causing inability or great difficulty in learning to read or spell, despite normal intelligence.

It inhibits recognition and processing of graphic symbols, particularly those pertaining to language. Symptoms, including very poor reading skills, reversed word and letter sequences, and illegible handwriting, usually become evident in the early school years. With early recognition and specialized approaches to teaching reading, most dyslexics can learn to read. Anomalies have recently been found in reading-related pathways in the brains of dyslexic persons.

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      an inability or pronounced difficulty to learn to read or spell, despite otherwise normal intellectual functions. Dyslexia is a chronic neurological disorder that inhibits a person's ability to recognize and process graphic symbols, particularly those pertaining to language. Primary symptoms include extremely poor reading skills owing to no apparent cause, a tendency to read and write words and letters in reversed sequences, similar reversals of words and letters in the person's speech, and illegible handwriting.

      Dyslexia is three times more common in boys than in girls and usually becomes evident in the early school years. The disorder tends to run in families. Only a minority of dyslexics remain nonreaders into adulthood, but many dyslexics continue to read and spell poorly throughout their lifetime. Dyslexics frequently perform above average on nonverbal tests of intelligence, however. Dyslexia is best treated by a sustained course of proper instruction in reading. The cause of the disorder is unknown; dyslexia is usually diagnosed for children or adults who have reading difficulties for which there is no apparent explanation.

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Universalium. 2010.

Look at other dictionaries:

  • Dyslexia — is a specific reading disability due to a defect in the brain s (higher cortical) processing of graphic symbols. Dyslexia is thus a learning disability that alters the way the brain processes written material. The effects of dyslexia vary from… …   Medical dictionary

  • dyslexia — n. an impaired ability to read. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • dyslexia — c.1887, from Ger. dyslexie (1883), from Gk. dys bad, abnormal, difficult (see DYS (Cf. dys )) + lexis word, from legein speak (see LECTURE (Cf. lecture) (n.)). Dyslexic (n.) is first recorded 1961; dyslectic (adj.) from 1964 …   Etymology dictionary

  • dyslexia — ► NOUN ▪ a disorder involving difficulty in learning to read or interpret words, letters, and other symbols. DERIVATIVES dyslexic adjective & noun. ORIGIN from Greek lexis speech (apparently by confusion of Greek legein to speak and Latin legere… …   English terms dictionary

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  • Dyslexia — This article is about developmental dyslexia. For acquired dyslexia, see Alexia (acquired dyslexia). Dyslexia Classification and external resources ICD 10 R48.0 ICD 9 …   Wikipedia

  • dyslexia — [[t]dɪ̱sle̱ksiə[/t]] N UNCOUNT If someone suffers from dyslexia, they have difficulty with reading because of a slight disorder of their brain. [TECHNICAL] …   English dictionary

  • dyslexia —    A lack of ability to read, often characterized by reversals. To a dyslexic person, a printed page may appear to be a jumble of incoherent data. Dyslexia is a common learning disability. (pr. diss leck see uh) …   Glossary of Art Terms

  • dyslexia — n. a developmental disorder selectively affecting a child s ability to learn to read and write. The condition affects boys more often than girls and can create serious educational problems. It is sometimes called specific dyslexia, developmental… …   The new mediacal dictionary

  • dyslexia — n. an abnormal difficulty in reading and spelling, caused by a condition of the brain. Derivatives: dyslexic adj. & n. dyslectic adj. & n. Etymology: G Dyslexie (as DYS , Gk lexis speech) * * * dyslexia, dyslexic see dys …   Useful english dictionary

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