Document Detail


Perceived compliance in a pinch.
MedLine Citation:
PMID:  21371492     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Handling a compliant object using a pinch grasp provides sensory information about deformation and resistive force from both index finger and thumb. In this paper, an object with rigid surfaces and composed of two compliant materials fixed on a central position is used to address how information from the two fingers is integrated into a holistic percept of compliance. Results indicate that with small differences in material compliance there is a small tendency to rely more on the information at the index finger. With larger differences in material compliance participants adopt different movement patterns with the two fingers to explore the objects. Compliance judgments depend on the relative amount of motion and force exerted-the finger that presses more contributes more to the final estimate. This tendency is consistent with the utilization of a unique force signal for the two fingers. The uneven contribution of the sensory information in the pinch leads to predictable compliance discrimination performance from the performance obtained using the fingers independently.
Authors:
Massimiliano Di Luca
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-03-01
Journal Detail:
Title:  Vision research     Volume:  51     ISSN:  1878-5646     ISO Abbreviation:  Vision Res.     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-04-19     Completed Date:  2011-08-12     Revised Date:  2011-09-15    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  961-7     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
Max Planck Institute for Biological Cybernetics, Spemannstr. 38, Tübingen 72076, Germany. max@tuebingen.mpg.de
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MeSH Terms
Descriptor/Qualifier:
Compressive Strength
Discrimination (Psychology)
Fingers / physiology*
Humans
Motor Skills / physiology
Movement / physiology*
Psychomotor Performance / physiology*
Thumb / physiology
Touch / physiology*
Comments/Corrections
Erratum In:
Vision Res. 2011 Aug 1;51(15):1789

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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