Visuospatial skills and their association with math performance in girls with fragile X or Turner syndrome

Michèle M.M. Mazzocco, Neha Singh Bhatia, Katarzyna Lesniak-Karpiak

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71 Scopus citations

Abstract

The present study was designed to assess object identification ("what") and location ("where") skills among girls with fragile X or Turner syndrome and girls with neither disorder. Participants completed standardized subtests of visual perception and tasks of visuospatial "what" and "where" memory. Girls with fragile X had average performance on most object identification tasks, yet 53% failed to accurately recreate the gestalt of a design during the "where" memory task. Fewer than 7% of girls in the Turner or comparison group made this error. Girls with Turner syndrome had lower scores and longer response times on object perception tasks and had poorer recall of location for internal features of the design on the "where" memory task, relative to girls in the comparison or fragile X group. When limiting analyses to IQ-matched samples, correlations between math and visual perception tasks emerged, but only for girls with fragile X. These results reflect important differences between two cognitive phenotypes and have implications for the role of visuospatial processing in early math performance.

Original languageEnglish (US)
Pages (from-to)87-110
Number of pages24
JournalChild Neuropsychology
Volume12
Issue number2
DOIs
StatePublished - May 2006
Externally publishedYes

Bibliographical note

Funding Information:
This research was supported by NIH grant R01 HD 34061 from the National Institute of Child Health and Human Development awarded to Dr. Mazzocco. Additional support for the involvement of Ms. Bhatia in this project came from the 2004 Rosen Summer Fellowship from the National Fragile X Foundation. The authors thank the children and parents whose participation contributed to this research, the faculty and staff members of the Baltimore County Public School District, and MSDP research assistants Stephanie Hwang, Gwyn Gerner, and Project Coordinator Gwen F. Myers.

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