PERCEPTUAL DIMENSIONS OF TACTILE SURFACE TEXTURE - A MULTIDIMENSIONAL-SCALING ANALYSIS
PERCEPTUAL DIMENSIONS OF TACTILE SURFACE TEXTURE - A MULTIDIMENSIONAL-SCALING ANALYSIS
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DOI：
10.3758/bf03211795
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发表时间：
1993-12-01
期刊：
影响因子：
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通讯作者：
YOUNG, F
中科院分区：
文献类型：
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作者：
HOLLINS, M;FALDOWSKI, R;YOUNG, F
本研究旨在探讨触觉表面纹理知觉的主观维度。17种触觉刺激，如木头、砂纸和天鹅绒，在受试者的食指上移动，受试者根据感知的相似性将它们分类。多维标度（MDS）技术，然后被用来定位在一个感知空间的基础上的20名受试者的组合数据的刺激。判断三维空间可提供令人满意的数据表示。受试者的评级，每个刺激的五个尺度代表推定的尺寸感知表面纹理，然后拟合回归分析到MDS空间。发现粗糙度-光滑度和硬度-柔软度是稳健和正交的维度;第三个维度与使用的任何评定量表都不密切对应，但事后数据检查表明，它可能反映了表面的压缩弹性（“弹性”）。
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.