Multiple object tracking in individuals with Down syndrome
LE3 .A278 2010
Degree of Bachelor of Science
The present study investigated differences in multiple object tracking ( MOT) abilities among individuals with Down syndrome ( DS) and typically developing controls ( TDC). Individuals with Down syndrome were compared to typically developing control children with mental ages ranging from 4- 7 years old on their tracking abilities using a computerized MOT task called “ Catch the Spies”. To assess the roles of object selection and visual working memory in multiple object tracking, accuracy on measures of immediate and delayed memory were also compared. The DS group displayed significantly lower accuracy than the TDC group when tracking one to three spies, and both groups performed below chance when tracking four objects. It was suggested that differences could be due to deficits in attention selection for the DS group that increase cognitive load, thereby placing increased demands on limited capacity visual working memory.
The author grants permission to the University Librarian at Acadia University to reproduce, loan or distribute copies of my thesis in microform, paper or electronic formats on a non-profit basis. The author retains the copyright of the thesis.