Tactile discrimination of thickness
Tactile discrimination of thickness
复制标题
触觉厚度辨别
DOI：
10.1007/bf00230687
复制
发表时间：
2004
影响因子：
2
通讯作者：
I. Darian‐Smith
中科院分区：
文献类型：
--
作者：
K. John;A. Goodwin;I. Darian‐Smith
摘要：采用强迫选择范式测量了人类受试者区分不同厚度平面金属板的能力。这些板是在平坦的黄铜垫片上电镀一层薄薄的铜制成的，用拇指和食指夹住。受试者被出示两个标准板（0.2 mm厚），或者一个标准板和一个稍厚的测试板，并被要求说明发生了哪种选择。当板的边缘不能接触时，可以分辨出约0.075 mm的厚度差异。令人惊讶的是，当握把包括边缘时，性能并没有提高。受试者所使用的所有策略假设都要求他们以0.1°左右的精度感知手指关节的角度。
SummaryThe ability of human subjects to discriminate plane metal plates of different thickness was measured using a forced-choice paradigm. The plates, made by electroplating a thin layer of copper onto flat brass shims, were gripped between the thumb and the index finger. Subjects were presented with either 2 standard plates (0.2 mm thick), or a standard plate and a test plate that was slightly thicker, and were required to state which alternative had occurred. When the edges of the plates could not be touched, a difference in thickness of about 0.075 mm could be discriminated. Surprisingly, when the edges were included in the grip, performance did not improve. All hypotheses of strategies used by the subjects required them to sense the angles of the finger joints with a precision of about 0.1°.
光滑表面上单个粗糙度的触觉检测阈值。
DOI：
10.3109/07367228309144538
发表时间：
1983
期刊：
Somatosensory research
影响因子：
--
作者：
Johansson,RS;LaMotte,RH
通讯作者：
LaMotte,RH