Reed C L, Lederman S J, Klatzky R L
University of California, Santa Barbara.
Can J Psychol. 1990 Dec;44(4):522-45. doi: 10.1037/h0084264.
Three studies investigate the role of size information in haptic classification of custom-made planar objects when size covaries with hardness, texture, or planar contour. The haptic exploratory procedure (Lederman & Klatzky, 1987) associated with size extraction is also sufficient for encoding shape, which should promote their integration. Experiment 1 showed substantial facilitation of classification by redundant size and shape cues, indicating the coprocessing of size and shape. Experiments 2 and 3 used a withdrawal paradigm: Classification trials began with two redundant properties, and one was then held constant (withdrawn). Experiment 2 showed that when size and shape were redundant, withdrawal of either impaired responses, whereas when size was redundant with texture or hardness, only size withdrawal had an effect. Experiment 3 demonstrated that this size weighting was not restricted to a single procedure for exploration. Size appears to be highly weighted in haptic classification and potentially integrated with other properties having compatible methods of extraction.
三项研究探讨了在定制平面物体的触觉分类中，当尺寸与硬度、质地或平面轮廓共同变化时，尺寸信息所起的作用。与尺寸提取相关的触觉探索程序（莱德曼和克拉茨基，1987年）对于编码形状也足够充分，这应该会促进它们的整合。实验1表明，冗余的尺寸和形状线索极大地促进了分类，这表明尺寸和形状是共同处理的。实验2和实验3采用了撤离范式：分类试验开始时有两个冗余属性，然后保持其中一个不变（撤离）。实验2表明，当尺寸和形状冗余时，撤离其中任何一个都会损害反应，而当尺寸与质地或硬度冗余时，只有撤离尺寸才有影响。实验3证明，这种尺寸加权并不局限于单一的探索程序。在触觉分类中，尺寸似乎具有很高的权重，并且可能与具有兼容提取方法的其他属性整合在一起。
