Analysis of haptic perception of materials by multidimensional scaling andphysical measurements of roughness and compressibility

Abstract

In this paper, results of a free sorting task of 124 different material samples are analysedusing multidimensional scaling. The relevant number of dimensions for haptic perception ofmaterials is estimated to be 4. In addition, the haptic material space is calibrated by meansof physical measurements of compressibility and roughness. The relation between objectiveand perceived compressibility and that between objective and perceived roughness could bedescribed by an exponential function. 2005 Elsevier B.V. All rights reserved.PsycINFO classification: 2320Keywords: Touch; Material perception; Multidimensional scaling; Roughness; Compressibility