| Fading-figure tracing in Williams syndrome. | |
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MedLine Citation:
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PMID: 21074925 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Williams syndrome (WS) is a neurodevelopmental disorder characterized by severe impairment of visuospatial abilities. Figure-drawing abilities, which are thought to reflect visuospatial abilities, have yet to be fully investigated in WS. The purpose of the present study was to clarify whether drawing abilities differ between WS individuals and typically developing children (TD). We compared the performance of two groups of subjects (WS, mean age 16 years; TD, 5-6 years of age) using a fading-figure tracing task that requires subjects to trace a target figure that is gradually disappearing from a PC screen. Although the TD group exhibited clearly improved performance with long fading time, the WS group did not. Moreover, the TD group exhibited poor performance for figures with more than six angles, regardless of the figure type (e.g. closed or open), whereas the WS group exhibited generally poor performance for figures with more than five angles but relatively preserved performance for open figures. These findings indicate that a combination of decreased visuospatial span associated with incomplete development of visual scanning and disproportionate development of global processing may cause drawing disabilities in WS. |
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Authors:
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Chiyoko Nagai; Toshio Inui; Makoto Iwata |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-11-12 |
Journal Detail:
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Title: Brain and cognition Volume: 75 ISSN: 1090-2147 ISO Abbreviation: Brain Cogn Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2010-11-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8218014 Medline TA: Brain Cogn Country: United States |
Other Details:
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Languages: eng Pagination: 10-7 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Asada Synergistic Intelligence Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Japan. nagai@jeap.org |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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