Document Detail


Surface texture can bias tactile form perception.
MedLine Citation:
PMID:  20981539     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The sense of touch is believed to provide a reliable perception of the object's properties; however, our tactile perceptions could be illusory at times. A recently reported tactile illusion shows that a raised form can be perceived as indented when it is surrounded by textured areas. This phenomenon suggests that the form perception can be influenced by the surface textures in its adjacent areas. As perception of texture and that of form have been studied independently of each other, the present study examined whether textures, in addition to the geometric edges, contribute to the tactile form perception. We examined the perception of the flat and raised contact surface (3.0 mm width) with various heights (0.1, 0.2, 0.3 mm), which had either textured or non-textured adjacent areas, under the static, passive and active touch conditions. Our results showed that texture decreased the raised perception of the surface with a small height (0.1 mm) and decreased the flat perception of the physically flat surface under the passive and active touch conditions. We discuss a possible mechanism underlying the effect of the textures on the form perception based on previous neurophysiological findings.
Authors:
Masashi Nakatani; Robert D Howe; Susumu Tachi
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Publication Detail:
Type:  Journal Article     Date:  2010-10-28
Journal Detail:
Title:  Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale     Volume:  208     ISSN:  1432-1106     ISO Abbreviation:  Exp Brain Res     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-01-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0043312     Medline TA:  Exp Brain Res     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  151-6     Citation Subset:  IM    
Affiliation:
Graduate School of Information Science and Technology, The University of Tokyo, Bunkyo, Tokyo, Japan. masashi_nakatani@ipc.i.u-tokyo.ac.jp
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