Document Detail

Multiple-object tracking among individuals with Down syndrome and typically developing children.
MedLine Citation:
PMID:  23627962     Owner:  NLM     Status:  In-Data-Review    
We investigated differences in multiple-object tracking among individuals with Down syndrome (DS) as compared to typically developing children matched on a visual-spatial mental age of approximately 5.5 years. In order to ensure that these effects did not originate in differences in encoding or reporting the positions of targets in distracters after a delay, immediate and delayed report were measured for static items. Although their immediate and delayed report for multiple static items was comparable to that of the typically developing children, the participants with DS performed as if they were only capable of tracking a single item at a time regardless of the number of targets that needed to be tracked. This finding is surprising because the operations used in multiple-object tracking are thought to be necessary for visuospatial tasks, which are an area of relative strength among persons with DS. These results call into question the idea that abilities or deficits in multiple-object tracking predict visuospatial performance, and highlight ways that atypical development can inform our understanding of typical development.
Darlene A Brodeur; Lana M Trick; Heidi Flores; Caitlin Marr; Jacob A Burack
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Development and psychopathology     Volume:  25     ISSN:  1469-2198     ISO Abbreviation:  Dev. Psychopathol.     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-04-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8910645     Medline TA:  Dev Psychopathol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  545-53     Citation Subset:  IM    
Acadia University.
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