一种用于使有纹理的表面以正弦波形式在皮肤上移动的刺激器。

A stimulator for moving textured surfaces sinusoidally across the skin.

作者信息

Goodwin A W, Morley J W, Clarke C, Lumaksana B, Darian-Smith I

出版信息

J Neurosci Methods. 1985 Jul;14(2):121-5. doi: 10.1016/0165-0270(85)90124-4.

Abstract

The stimulator allows textured surfaces to be moved sinusoidally across the skin of the fingerpad. Sinusoidal motion is produced by a "scotch yolk" driven by a DC motor. The amplitude of movement is adjustable up to a maximum of 80 mm peak to peak and the frequency is continuously adjustable from 0.1 Hz to 2.0 Hz. Movement of the surface is monitored by an optical transducer and contact force between the finger and the surface is monitored by a strain gauge bridge. The stimulator is simple and robust and is suitable for both neurophysiological and psychophysical experiments in animals and humans.

摘要

该刺激器可使带纹理的表面在指尖皮肤上做正弦运动。正弦运动由直流电机驱动的“苏格兰轭”产生。运动幅度最大可调至峰峰值80毫米，频率可在0.1赫兹至2.0赫兹之间连续调节。表面运动由光学传感器监测，手指与表面之间的接触力由应变片电桥监测。该刺激器简单且坚固，适用于动物和人类的神经生理学和心理物理学实验。