Individual differences in perceptual space for tactile textures:: Evidence from multidimensional scaling
Individual differences in perceptual space for tactile textures:: Evidence from multidimensional scaling
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DOI：
10.3758/bf03212154
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发表时间：
2000-11-01
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影响因子：
--
通讯作者：
Young, F
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文献类型：
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作者：
Hollins, M;Bensmaïa, S;Young, F
比例缩放被用来获得从5个科目的估计的主观相异的成员之间的所有可能对17个触觉表面。刺激物是各种各样的日常表面，如灯芯绒，砂纸和合成毛皮。使用多维标度（MDS）程序ALSCAL对结果进行分析。有大量的，但不完整的，协议在感知纹理的空间排列的主题。Scree图和多变量分析表明，对于某些受试者，二维空间是MDS的最佳解决方案，而对于其他受试者，则需要三维空间。之后，他们的相异性缩放，受试者评价每个刺激的五个形容词量表。与之前的研究一致。其中两个（粗糙/光滑和软/硬）与所有受试者的空间稳健相关。第三个尺度，粘/滑，是更相关的相异数据：回归到三维MDS空间，它是陡峭的角度到第三个维度，只有受试者的scree图有利于一个非平面的解决方案。我们的结论是，粘性/光滑的维度是感知加权小于粗糙/光滑和软/硬的尺寸，实质上有助于结构的感知空间，只有在一些人。
Ratio scaling was used to obtain from 5 subjects estimates of the subjective dissimilarity between the members of all possible pairs of 17 tactile surfaces. The stimuli were a diverse array of everyday surfaces, such as corduroy, sandpaper, and synthetic fur. The results were analyzed using the multidimensional scaling (MDS) program ALSCAL. There was substantial, but not complete, agreement across subjects in the spatial arrangement of perceived textures. Scree plots and multivariate analysis suggested that, for some subjects, a two-dimensional space was the optimal MDS solution, whereas for other subjects, a three-dimensional space was indicated. Subsequent to their dissimilarity scaling, subjects rated each stimulus on each of five adjective scales. Consistent with earlier research. two of these (rough/smooth and soft/hard) were robustly related to the space for all subjects. A third scale, sticky/slippery, was more variably related to the dissimilarity data: regressed into three-dimensional MDS space, it was angled steeply into the third dimension only for subjects whose scree plots favored a nonplanar solution. We conclude that the sticky/slippery dimension is perceptually weighted less than the rough/smooth and soft/hard dimensions, materially contributing to the structure of perceptual space only in some individuals.