Multiple-object tracking individuals with Down syndrome and typically developing children  

Oleh:

Brodeur, Darlene ; Trick, Lana M. ; Flores, Heidi ; Marr, Caitlin ; Burack, Jacob A.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Development and Psychopathology vol. 25 no. 2 (May 2013), page 545-553.
Topik: Down syndrome; Multiple-object Tracking; Visuospatial Tasks; Visuospatial Performance

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: DD21.24 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

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.

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