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  • Title: Route learning and shortcut performance in adults with intellectual disability: a study with virtual environments.
    Author: Mengue-Topio H, Courbois Y, Farran EK, Sockeel P.
    Journal: Res Dev Disabil; 2011; 32(1):345-52. PubMed ID: 21084172.
    Abstract:
    The ability to learn routes though a virtual environment (VE) and to make a novel shortcut between two locations was assessed in 18 adults with intellectual disability and 18 adults without intellectual disability matched on chronological age. Participants explored two routes (A ⇔ B and A ⇔ C) until they reached a learning criterion. Then, they were placed at B and were asked to find the shortest way to C (B ⇔ C, five trials). Participants in both groups could learn the routes, but most of the participants with intellectual disability could not find the shortest route between B and C. However, the results also revealed important individual differences within the intellectual disability group, with some participants exhibiting more efficient wayfinding behaviour than others. Individuals with intellectual disability may differ in the kind of spatial knowledge they extract from the environment and/or in the strategy they use to learn routes.
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