Shimizu Y, Saida S, Shimura H
Tsukuba College of Technology, Ibaraki, Japan.
Percept Psychophys. 1993 Jan;53(1):43-8. doi: 10.3758/bf03211714.
Haptic recognition of familiar objects by the early blind, the late blind, and the sighted was investigated with two-dimensional (2-D) and three-dimensional (3-D) stimuli produced by small tactor-pins. The 2-D stimulus was an outline of an object that was depicted by raising tactor-pins to 1.5 mm. The 3-D stimulus was a relief that was produced by raising the tactors up to 10 mm, corresponding to the height of the object. Mean recognition times for correct answers to the 3-D stimuli were faster than those for the 2-D stimuli, in all three subject groups. No statistically significant differences in percentage of correct responses between the 2-D and the 3-D stimuli were found for the late-blind and sighted groups, but the early-blind group demonstrated a significant difference. In addition, the haptic legibility for the quality of depiction of the object, without regard to whether or not the stimulus was understood, was measured. The haptic legibility of the 3-D stimuli was significantly higher than that of the 2-D stimuli for all the groups. These results suggest that 3-D presentation seems to promise a way to overcome the limitations of 2-D graphic display.
通过由小型触觉针产生的二维（2-D）和三维（3-D）刺激，对早期失明者、晚期失明者和有视力者对熟悉物体的触觉识别进行了研究。二维刺激是通过将触觉针提升到1.5毫米来描绘的物体轮廓。三维刺激是通过将触觉针提升到10毫米产生的浮雕，与物体的高度相对应。在所有三个受试者组中，对三维刺激正确答案的平均识别时间比对二维刺激的平均识别时间更快。晚期失明组和有视力组在二维和三维刺激之间的正确反应百分比上没有发现统计学上的显著差异，但早期失明组表现出显著差异。此外，还测量了物体描绘质量的触觉清晰度，而不考虑刺激是否被理解。对于所有组来说，三维刺激的触觉清晰度明显高于二维刺激。这些结果表明，三维呈现似乎有望克服二维图形显示的局限性。
