Hanley T V, Cox D L
Percept Mot Skills. 1979 Apr;48(2):539-50. doi: 10.2466/pms.1979.48.2.539.
Research on the distinctive features of letters has been inconclusive. Investigators may have overlooked individual variations in their data which would have supported feature-extraction hypotheses but were concealed by analyses which averaged data into group means. Response latencies from a matching discrimination task with the 26 English capital letters were analyzed with INDSCAL, a multidimensional scaling procedure which weights individual contributions to a psychological space. Underlying a dimensions were linearity, curvature, angularity, and closure. The solution disclosed that individuals utilized these features differentially in the visual discriminations. The results suggest that future research in visual feature extraction will benefit from the examination of individual variations in the perceptual process.
关于字母独特特征的研究尚无定论。研究人员可能在数据中忽略了个体差异，这些差异本可支持特征提取假说，但却被将数据平均为组均值的分析所掩盖。使用INDSCAL（一种多维缩放程序，该程序对个体在心理空间中的贡献进行加权）对26个英文字母匹配辨别任务的反应潜伏期进行了分析。一个维度的基础是线性、曲率、棱角性和封闭性。该解决方案表明，个体在视觉辨别中对这些特征的利用存在差异。结果表明，未来视觉特征提取的研究将受益于对感知过程中个体差异的研究。
