Article: Working memory and arithmetic impairments in children with FMR1 premutation and gray zone alleles.
Dementia & neuropsychologia
2022 Volume 16, Issue 1, Page(s) 105–114
Abstract: Expansive mutations in familial mental retardation 1 (: Objectives: This study aimed to describe the frequency of : Methods: We described a two-phase study. In the first phase, 2,195 school-age children were screened for math achievement. In the ... ...
Abstract | Expansive mutations in familial mental retardation 1 ( Objectives: This study aimed to describe the frequency of Methods: We described a two-phase study. In the first phase, 2,195 school-age children were screened for math achievement. In the second phase, 378 children with normal intelligence were neuropsychologically assessed and genotyped for Results: Four pupils presented expanded alleles, one premutation and three gray zone alleles. The girl with the premutation and one boy with a gray zone allele presented impairments in working memory and arithmetic performance below percentile 6, compatible with the diagnosis of developmental dyscalculia. These children's difficulties were not associated with inaccuracy of nonsymbolic number representations or literacy impairments. Dyscalculia in these children seems to be associated mainly with working memory impairments. Conclusions: FMR1 |
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Language | English |
Publishing date | 2022-06-11 |
Publishing country | Brazil |
Document type | Journal Article |
ISSN | 1980-5764 |
ISSN | 1980-5764 |
DOI | 10.1590/1980-5764-DN-2021-0035 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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