The acquisition of survey knowledge across repeated exposures to a novel environment in individuals with down syndrome

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dc.contributor Roskos-Ewoldsen, Beverly
dc.contributor Conners, Frances A.
dc.contributor Cox, Jennifer
dc.contributor Mutua, Kagendo
dc.contributor.advisor Merrill, Edward C. Himmelberger, Zachary Mark
dc.contributor.other University of Alabama Tuscaloosa 2018-07-11T16:49:07Z 2018-07-11T16:49:07Z 2018
dc.identifier.other u0015_0000001_0002938
dc.identifier.other Himmelberger_alatus_0004D_13390
dc.description Electronic Thesis or Dissertation en_US
dc.description.abstract Down syndrome (DS) is a neurodevelopmental disorder associated with many cognitive weaknesses, including certain aspects of wayfinding. There are several theoretical reasons, such as abnormal brain development and similar weaknesses in smaller scales of space, that these deficits include developing survey knowledge of an environment. However, few studies have directly investigated this ability. The current study compared people with DS to typical adults matched on chronological age and typical children matched on the KBIT-II Matrices Subtest on a measure of survey knowledge. More specifically, an experimenter exposed participants to a novel virtual environment, and then were asked to find a specific target on their own. The total distance traveled and time taken to find the target served as dependent variables. The task was repeated three times, such that the participants navigated to the target after the experimenter showed them the environment once, two additional times, and again after two more times. Participants in both comparison groups demonstrated linear improvement across the three trials, with the children travelling a longer distance and taking longer to find the target at each trial compared to the adults. Participants with DS performed similarly to the typical children after the initial exposure, but did not demonstrate any learning across the trials, thereby resulting in a worse performance than both control groups on subsequent trials. The findings suggest that survey representations are impaired in DS, specifically in the ability to improve these representations over time. This has important implications for developing wayfinding interventions, and for understanding how these individuals learn about new environments. en_US
dc.format.extent 89 p.
dc.format.medium electronic
dc.format.mimetype application/pdf
dc.language English
dc.language.iso en_US
dc.publisher University of Alabama Libraries
dc.relation.ispartof The University of Alabama Electronic Theses and Dissertations
dc.relation.ispartof The University of Alabama Libraries Digital Collections
dc.relation.haspart Supplementary material includes a .csv data file.
dc.relation.hasversion born digital
dc.rights All rights reserved by the author unless otherwise indicated. en_US
dc.subject Psychology
dc.subject Cognitive psychology
dc.subject Developmental psychology
dc.title The acquisition of survey knowledge across repeated exposures to a novel environment in individuals with down syndrome en_US
dc.type thesis
dc.type text University of Alabama. Department of Psychology Psychology The University of Alabama doctoral Ph.D.

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