Modeling the Relations Among Sustained Attention, Short-Term Memory, and Language in Down Syndrome

Author:

Faught Gayle G.1,Conners Frances A.1

Affiliation:

1. Gayle G. Faught, University of South Carolina Aiken; and Frances A. Conners, The University of Alabama, Tuscaloosa.

Abstract

Abstract Sustained attention (SA) and short-term memory (STM) contribute to language function in Down syndrome (DS). We proposed models in which relations of SA to language in DS are mediated by STM. Thirty-seven youth with DS aged 10–22 years (M = 15.59) completed SA, STM, and language tasks. Cross-sectional mediation analyses were run with the bootstrapping method. We found significant indirect effects of SA separately on vocabulary and syntax through auditory STM with point estimates of −.30 and −.31, respectively. Results suggest lapses in SA compromise auditory STM, which in turn impacts vocabulary and syntax in youth with DS; however, further research is needed to confirm causality. Addressing SA and STM in language therapy with youth with DS could lead to improved outcomes.

Publisher

American Association on Intellectual and Developmental Disabilities (AAIDD)

Subject

Psychiatry and Mental health,Clinical Neurology,Arts and Humanities (miscellaneous),Developmental and Educational Psychology,Neuropsychology and Physiological Psychology,General Medicine,Pediatrics, Perinatology, and Child Health

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