Hand orientation is insufficiently compensated for in haptic spatial perception

Experimental Brain Research
Astrid M L Kappers, Roderik F Viergever

Abstract

What humans haptically perceive as parallel is often far from physically parallel. These deviations from parallelity are highly significant and very systematic. There exists accumulating evidence, both psychophysical and neurophysiological, that what is haptically parallel is decided in a frame of reference intermediate to an allocentric and an egocentric one. The central question here concerns the nature of the egocentric frame of reference. In the literature, various kinds of egocentric reference frames are mentioned for haptic spatial tasks, such as hand-centered, arm-centered, and body-centered frames of reference. Thus far, it has not been possible to distinguish between body-centered, arm-centered, and hand-centered reference frames in our experiments, as hand and arm orientation always covaried with distance from the body-midline. In the current set of experiments the influence of body-centered and hand-centered reference frames could be dissociated. Subjects were asked to make a test bar haptically parallel to a reference bar in five different conditions, in which their hands were oriented straight ahead, rotated to the left, rotated to the right, rotated outward or rotated inward. If the reference frame is body-centere...Continue Reading

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Citations

Dec 7, 2007·Experimental Brain Research·Warren G DarlingJames P Schmiedeler
Mar 28, 2008·Experimental Brain Research·Robert Volcic, Astrid M L Kappers
May 10, 2007·Journal of Neurology, Neurosurgery, and Psychiatry·Ravi Bhat, Kenneth Rockwood
Jun 17, 2008·Experimental Brain Research·Robert VolcicAstrid M L Kappers
Jul 1, 2013·Wiley Interdisciplinary Reviews. Cognitive Science·Astrid M L Kappers, Wouter M Bergmann Tiest
Jul 1, 2011·IEEE Transactions on Haptics·S J Lederman, L A Jones
Apr 21, 2011·IEEE Transactions on Haptics·John F Soechting, Martha Flanders
Feb 27, 2009·Acta Psychologica·Robert VolcicAstrid M L Kappers
Feb 8, 2011·Acta Psychologica·Marcos Fernández-Díaz, David Travieso
Jun 20, 2008·Acta Psychologica·K E OvervlietE Brenner
Nov 21, 2007·Acta Psychologica·Astrid M L KappersRoderik F Viergever
Feb 21, 2009·Perception·Andrew T WoodsFiona N Newell
Sep 30, 2020·Experimental Brain Research·Hanneke I Van Mier, Hui Jiao
Aug 19, 2016·Experimental Brain Research·Lindsey E Fraser, Laurence R Harris
Jul 7, 2018·I-Perception·Astrid M L KappersGiulio S Tan
Sep 12, 2018·Scientific Reports·Lucile DupinMark Wexler
Sep 21, 2017·Experimental Brain Research·Lindsey E Fraser, Laurence R Harris

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