LEARNING DISORDERS AND SEX CHROMOSOME ABERRATIONS
- 28 June 2008
- journal article
- research article
- Published by Wiley in Journal of Intellectual Disability Research
- Vol. 24 (1) , 17-26
- https://doi.org/10.1111/j.1365-2788.1980.tb00053.x
Abstract
No sex chromosome aberrations were detected in a prospective study of 20 adult dyslexic men. A retrospective study of 89 subjects with known sex chromosome aberrations revealed 20 of them to be mentally-retarded. Among the 69 subjects of normal intelligence, learning, speech and attention disorders were frequent. Children with 47,XYY, 47,XXY and 47,XXX karyotypes appeared particularly prone to experience delays in speech development and later academic underachievement in language-related subjects. Speech development was normal in all of the girls with Turner''s syndrome and later academic difficulties were usually confined to mathematics or science. Hyperactivity was noted with considerable frequency among 47,XYY and Turner''s syndrome subjects, but not among subjects with a 47,XXX or 47,XXY karyotype.This publication has 26 references indexed in Scilit:
- Are sex chromosone abnormalities a factor in speech delay?Archives of Disease in Childhood, 1978
- Intelligence among persons with Turner's syndromeBehavior Genetics, 1977
- Criminality in XYY and XXY MenScience, 1976
- A cytogenetic survey of 11,680 newborn infantsAnnals of Human Genetics, 1974
- Thirty-five males with double Y chromosomePsychological Medicine, 1974
- Turner's Syndrome and Parietal Lobe FunctionsCortex, 1973
- Chromosome findings in 700 children referred to a psychiatric clinicThe Journal of Pediatrics, 1972
- KLINEFELTER'S SYNDROME IN CHILDRENJournal of Child Psychology and Psychiatry, 1970
- Two cytogenetic syndromes: Psychologic comparisons 1. Intelligence and specific-factor quotientsJournal of Psychiatric Research, 1964
- XO/XX Mosaicism in a Pair of Presumably Monozygotic Twins with Different PhenotypesCytogenetic and Genome Research, 1963