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      Perceptual dimensions of tactile surface texture: a multidimensional scaling analysis.

      Perception & psychophysics
      Adolescent, Adult, Contrast Sensitivity, Female, Humans, Male, Perception, Touch

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          Abstract

          The purpose of this study was to examine the subjective dimensionality of tactile surface texture perception. Seventeen tactile stimuli, such as wood, sandpaper, and velvet, were moved across the index finger of the subject, who sorted them into categories on the basis of perceived similarity. Multidimensional scaling (MDS) techniques were then used to position the stimuli in a perceptual space on the basis of combined data of 20 subjects. A three-dimensional space was judged to give a satisfactory representation of the data. Subjects' ratings of each stimulus on five scales representing putative dimensions of perceived surface texture were then fitted by regression analysis into the MDS space. Roughness-smoothness and hardness-softness were found to be robust and orthogonal dimensions; the third dimension did not correspond closely with any of the rating scales used, but post hoc inspection of the data suggested that it may reflect the compressional elasticity ("springiness") of the surface.

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          Author and article information

          Journal
          8134240
          10.3758/BF03211795

          Chemistry
          Adolescent,Adult,Contrast Sensitivity,Female,Humans,Male,Perception,Touch
          Chemistry
          Adolescent, Adult, Contrast Sensitivity, Female, Humans, Male, Perception, Touch

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