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ERIC Number: EJ863553
Record Type: Journal
Publication Date: 2009
Pages: 20
Abstractor: As Provided
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0885-2014
The Trajectory of Mathematics Skills and Working Memory Thresholds in Girls with Fragile X Syndrome
Murphy, Melissa M.; Mazzocco, Michele M. M.
Cognitive Development, v24 n4 p430-449 2009
Fragile X syndrome is a common genetic disorder associated with executive function deficits and poor mathematics achievement. In the present study, we examined changes in math performance during the elementary and middle school years in girls with fragile X syndrome, changes in the working memory loads under which children could complete a cognitive switching task, and the association between these two areas of function, in girls with fragile X syndrome relative to their peers. Our findings indicate that the trajectory of math and executive function skills of girls with fragile X differs from that of their peers and that these skills contribute to predicting math achievement and growth in math performance over time. Also, changes in math performance were associated with incremental increases in working memory demands, suggesting that girls with fragile X have a lower threshold for being able to perform under increasing task demands. Still, we found improvement in executive function performance between 10 and 12 years in girls with fragile X rather than a performance plateau as has been reported in other studies. The findings implicate the importance of early intervention in mathematics for girls with fragile X that addresses poor calculation skills, the supporting numerical skills, and deficits in executive functions, including working memory. (Contains 4 figures and 4 tables.)
Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education; Middle Schools
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A