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dc.contributor.authorKornbrot, D.
dc.contributor.authorPenn, P.
dc.contributor.authorPetrie, H.
dc.contributor.authorFurner, S.
dc.contributor.authorHardwick, A.
dc.date.accessioned2011-08-08T15:01:15Z
dc.date.available2011-08-08T15:01:15Z
dc.date.issued2007
dc.identifier.citationKornbrot , D , Penn , P , Petrie , H , Furner , S & Hardwick , A 2007 , ' Roughness perception in haptic virtual reality for sighted and blind people ' , Perception & Psychophysics , vol. 69 , no. 4 , pp. 502-512 . https://doi.org/10.3758/BF03193907
dc.identifier.issn0031-5117
dc.identifier.otherdspace: 2299/2959
dc.identifier.otherORCID: /0000-0002-7166-589X/work/41661185
dc.identifier.urihttp://hdl.handle.net/2299/6090
dc.description"This manuscript was accepted for publication in Perception and Psychophysics in 2007. The copyright is held by Psychonomic Society Publications. This document may not exactly correspond to the final published version. Psychonomic Society Publications disclaims any responsibility or liability for errors in this manuscript." Original article can be found (via Ingenta) at: http://www.ingentaconnect.com/content/0031-5117
dc.description.abstractPsychophysical functions for perceived roughness, relating ln (magnitude estimate of roughness) to ln (groove width), were obtained for blind and sighted participants in virtual reality using the PHANToM force feedback device. The stimuli were sinusoidal surfaces with groove widths between 0.675 mm and 20.700 mm. Group functions showed a similar nonlinearity to those obtained in physical reality using rigid probes (Klatzky, Lederman, Hamilton, Grindley, & Swendsen, 2003; Lederman, Klatzky, Hamilton, & Ramsay, 1999). Individual functions gave a different picture. Of 23 total participants, there were 13 with wholly descending linear psychometric functions, 7 with quadratic functions similar to the group function, and 3 with anomalous functions. Individual power law exponents showed no significant effects of visual status. All analyses gave a power law exponent close to 20.80. The implications for theories of roughness, methodologies of data analysis, and the design of haptic virtual reality interfaces are considered.en
dc.format.extent261309
dc.language.isoeng
dc.relation.ispartofPerception & Psychophysics
dc.subjectrougness
dc.subjectmagnitude estimation
dc.subjectblind
dc.subjectvisual disability
dc.titleRoughness perception in haptic virtual reality for sighted and blind peopleen
dc.contributor.institutionDepartment of Psychology
dc.description.statusPeer reviewed
rioxxterms.versionofrecord10.3758/BF03193907
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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