Lawrence Michael A, Kitada Ryo, Klatzky Roberta L, Lederman Susan J
Department of Psychology, Queen's University, Kingston, ON K7L 3N6, Canada.
Perception. 2007;36(4):547-57. doi: 10.1068/p5746.
The magnitude of perceived roughness was haptically estimated as subjects freely explored linear gratings with either the bare finger or a rigid stylus-shaped probe. A considerably expanded range of ridge and groove width was investigated, relative to the extant literature. The four experiments collectively indicate that, for both finger and probe-end effectors, the variance in the estimates of perceived roughness was predominantly predicted by a single parameter: groove width. The functions relating perceived roughness to groove width increased over a narrow band relative to the full range of values, then flattened. These data have archival values for models of roughness perception involving both direct and indirect touch.
当受试者用裸手指或刚性笔形探头自由探索线性光栅时，通过触觉估计感知粗糙度的大小。相对于现有文献，研究了相当广泛的脊和槽宽度范围。这四个实验共同表明，对于手指和探头末端效应器，感知粗糙度估计值的方差主要由一个参数预测：槽宽度。相对于整个值范围，将感知粗糙度与槽宽度相关联的函数在一个窄带内增加，然后趋于平稳。这些数据对于涉及直接和间接触摸的粗糙度感知模型具有存档价值。
