Differences in curvature between constrained and unconstrained goal-directed movements to haptic targets.
Identifieur interne : 001294 ( Main/Exploration ); précédent : 001293; suivant : 001295Differences in curvature between constrained and unconstrained goal-directed movements to haptic targets.
Auteurs : Marieke C W. Van Der Graaff [Pays-Bas] ; Eli Brenner ; Jeroen B J. SmeetsSource :
- Experimental brain research [ 1432-1106 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
- physiology : Movement, Psychomotor Performance, Touch, Visual Perception.
- Adult, Analysis of Variance, Biomechanical Phenomena, Constriction, Female, Friction, Goals, Humans, Male, Young Adult.
Abstract
Trajectories of goal-directed movements are less curved for movements over a surface (constrained) than for movements in empty space (unconstrained). To study whether this difference arises from feeling the surface slip across the skin or having to control the movements in a third dimension, we manipulated the available tactile information and the compliance of the surface. Participants were instructed to make straight movements towards haptic targets in the mid-sagittal plane. We found that constrained movements were less curved than unconstrained movements. The reduction of curvature was also visible with strongly reduced tactile information and for very compliant surfaces, so feeling the surface slip across the skin and having to control the movements in the third dimension are not critical. The reduced curvature when moving over a surface might arise from the extra information that the surface gives about the third dimension or from the extra information about the direction of the movement provided by the additional force needed to overcome friction.
DOI: 10.1007/s00221-014-4030-x
PubMed: 25008040
Affiliations:
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Le document en format XML
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Van Der Graaff</name><affiliation wicri:level="1"><nlm:affiliation>MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University, Amsterdam, The Netherlands, M.C.W.vander.Graaff@VU.nl.</nlm:affiliation><country wicri:rule="url">Pays-Bas</country><wicri:regionArea>MOVE Research Institute Amsterdam, Faculty of Human Movement Sciences, VU University, Amsterdam, The Netherlands</wicri:regionArea><wicri:noRegion>The Netherlands</wicri:noRegion></affiliation></author><author><name sortKey="Brenner, Eli" sort="Brenner, Eli" uniqKey="Brenner E" first="Eli" last="Brenner">Eli Brenner</name></author><author><name sortKey="Smeets, Jeroen B J" sort="Smeets, Jeroen B J" uniqKey="Smeets J" first="Jeroen B J" last="Smeets">Jeroen B J. Smeets</name></author></analytic><series><title level="j">Experimental brain research</title><idno type="eISSN">1432-1106</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Biomechanical Phenomena</term><term>Constriction</term><term>Female</term><term>Friction</term><term>Goals</term><term>Humans</term><term>Male</term><term>Movement (physiology)</term><term>Psychomotor Performance (physiology)</term><term>Touch (physiology)</term><term>Visual Perception (physiology)</term><term>Young Adult</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Movement</term><term>Psychomotor Performance</term><term>Touch</term><term>Visual Perception</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Biomechanical Phenomena</term><term>Constriction</term><term>Female</term><term>Friction</term><term>Goals</term><term>Humans</term><term>Male</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Trajectories of goal-directed movements are less curved for movements over a surface (constrained) than for movements in empty space (unconstrained). To study whether this difference arises from feeling the surface slip across the skin or having to control the movements in a third dimension, we manipulated the available tactile information and the compliance of the surface. Participants were instructed to make straight movements towards haptic targets in the mid-sagittal plane. We found that constrained movements were less curved than unconstrained movements. The reduction of curvature was also visible with strongly reduced tactile information and for very compliant surfaces, so feeling the surface slip across the skin and having to control the movements in the third dimension are not critical. The reduced curvature when moving over a surface might arise from the extra information that the surface gives about the third dimension or from the extra information about the direction of the movement provided by the additional force needed to overcome friction.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country></list><tree><noCountry><name sortKey="Brenner, Eli" sort="Brenner, Eli" uniqKey="Brenner E" first="Eli" last="Brenner">Eli Brenner</name><name sortKey="Smeets, Jeroen B J" sort="Smeets, Jeroen B J" uniqKey="Smeets J" first="Jeroen B J" last="Smeets">Jeroen B J. Smeets</name></noCountry><country name="Pays-Bas"><noRegion><name sortKey="Van Der Graaff, Marieke C W" sort="Van Der Graaff, Marieke C W" uniqKey="Van Der Graaff M" first="Marieke C W" last="Van Der Graaff">Marieke C W. Van Der Graaff</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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