Haptic Integration of Planar Size with Hardness, Texture, and Planar Contour.
Three experiments involving a total of 75 college students investigated the role of size information in haptic classification of custom-made planar objects when size covaries with hardness, texture, or planar contour. Exp 1 showed facilitation of classification by redundant (RD) size and shape cues, indicating the coprocessing of size and shape. Exps 2 and 3 used a withdrawal paradigm: Classification trials began with 2 RD properties, and 1 was then held constant (withdrawn). Exp 2 showed that when size and shape were RD, withdrawal of either impaired responses, whereas when size was RD with texture or hardness, only size withdrawal had an effect. Exp 3 demonstrated that this size weighting was not restricted to a single procedure for exploration.
© 1990 Canadian Psychological Association
Reed, C.L., Lederman, S.J., & Klatzky, R.L. (1990). Haptic integration of planar size with hardness, texture, and planar contour. Canadian Journal of Experimental Psychology, 44(4), 522-545