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Experimental and Theoretical Researches of Fine Surface-Texture Discrimination Ability in Tactile Sensation.

触觉精细表面纹理辨别能力的实验和理论研究。

基本信息

批准号：
07610093
负责人：
MIYAOKA Tetsu
金额：
$ 1.28万
依托单位：
Shizuoka Institute of Science and Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

项目摘要

This study consists of three researches. The first research was a theoretical one in wihch the fine surface-texture discrimination was situated in the tactile information processing system. The second research was an experiment designed to prove the validity of the amplitude information hypothesis, in which it was asserted that the subjects discriminated the fine surface texures using the amplitude information of surface unevenness. The third research was composed of two experiments. The purpose of this research was to investigate the spatial summation effects and the skin temperature effects on the discrimination ability of fine surface textures.The first research revealed that the tactile information processing system was classified into four sub-systems which showed mutually independent processing of the information. The fine surface-texture discrimination system was one of the four subsystems. In the second research the experiment of ridge height discrimination was performed. If the subjects discriminated the ridge heights using the amplitude information of the stimuli, the values of the difference thresholds of the ridge heights were the same as the difference threshold values of fine surface-textures. The results of the experiment supported the amplitude information hypothesis. The third research showed that the clear spatial summation was observed in the fine surface-texture discrimination tasks and that there existed little temperature dependent changes in the difference thresholds of fine surface-texture discrimination tasks.

本研究包括三个研究。第一个研究是在触觉信息处理系统中对细微表面纹理进行识别的理论研究。第二个研究是为了证明振幅信息假说的有效性而设计的实验，其中断言被试使用表面不平坦的振幅信息来辨别精细的表面纹理。研究三由两个实验组成。本研究旨在探讨空间总和效应和皮肤温度效应对细微表面纹理辨别能力的影响，研究发现，触觉信息加工系统可分为四个相互独立的信息加工子系统。精细表面纹理识别系统是四个子系统之一。研究二进行了垄高判别实验。如果受试者使用刺激的幅度信息辨别脊高度，则脊高度的差异阈值的值与精细表面纹理的差异阈值相同。实验结果支持幅度信息假说。第三项研究表明，在精细表面纹理辨别任务中，观察到了明显的空间求和，精细表面纹理辨别任务的差异阈值几乎不存在温度依赖性变化。