Accurate memory for object location by individuals with intellectual disability: Absolute spatial tagging instead of configural processing?

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Version: author
Serval ID
serval:BIB_9072EB3DB548
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Accurate memory for object location by individuals with intellectual disability: Absolute spatial tagging instead of configural processing?
Journal
Research In Developmental Disabilities
Author(s)
Giuliani F., Favrod J., Grasset F., Schenk F.
ISSN
1873-3379 (Electronic)
ISSN-L
0891-4222
Publication state
Published
Issued date
2011
Peer-reviewed
Oui
Volume
32
Number
3
Pages
986-994
Language
english
Abstract
Using head-mounted eye tracker material, we assessed spatial recognition abilities (e.g., reaction to object permutation, removal or replacement with a new object) in participants with intellectual disabilities. The "Intellectual Disabilities (ID)" group (n=40) obtained a score totalling a 93.7% success rate, whereas the "Normal Control" group (n=40) scored 55.6% and took longer to fix their attention on the displaced object. The participants with an intellectual disability thus had a more accurate perception of spatial changes than controls. Interestingly, the ID participants were more reactive to object displacement than to removal of the object. In the specific test of novelty detection, however, the scores were similar, the two groups approaching 100% detection. Analysis of the strategies expressed by the ID group revealed that they engaged in more systematic object checking and were more sensitive than the control group to changes in the structure of the environment. Indeed, during the familiarisation phase, the "ID" group explored the collection of objects more slowly, and fixed their gaze for a longer time upon a significantly lower number of fixation points during visual sweeping.
Pubmed
Web of science
Create date
18/04/2011 16:42
Last modification date
20/08/2019 15:53
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