| Do Humans Prefer to See Their Grasping Points? | |
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MedLine Citation:
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PMID: 22857715 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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ABSTRACT To grasp an object the digits need to be placed at suitable positions on its surface. The selection of such grasping points depends on several factors. Here the authors examined whether being able to see 1 of the selected grasping points is such a factor. Subjects grasped large cylinders or oriented blocks that would normally be grasped with the thumb continuously visible and the final part of the index finger's trajectory occluded by the object in question. An opaque screen that hid the thumb's usual grasping point was used to examine whether individuals would choose a grip that was oriented differently to maintain vision of the thumb's grasping point. A transparent screen was used as a control. Occluding the thumb's grasping point made subjects move more carefully (adopting a larger grip aperture) and choose a slightly different grip orientation. However, the change in grip orientation was much too small to keep the thumb visible. The authors conclude that humans do not particularly aim for visible grasping points. |
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Authors:
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D Voudouris; J B J Smeets; E Brenner |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-8-2 |
Journal Detail:
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Title: Journal of motor behavior Volume: - ISSN: 1940-1027 ISO Abbreviation: J Mot Behav Publication Date: 2012 Aug |
Date Detail:
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Created Date: 2012-8-3 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0236512 Medline TA: J Mot Behav Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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a Research Institute MOVE, Faculty of Human Movement Sciences , VU University , Amsterdam , the Netherlands. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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