In this paper we describe the design, development and functionality of a haptic force-matching device. This device measures precise sensorimotor perception by determining a subject’s ability to successfully attenuate incoming sensory signals. Sensory attenuation provides a novel method of investigating psychophysical aspects of perception and may help to formulate neurocognitive models that may account for maladaptive interoceptive processing. Several similar custom-made devices have been reported in the literature; however, a clear description of the mechanical engineering necessary to build such a device is lacking. We present, in detail, the hardware and software necessary to build such a device. Subjects (N = 25) were asked to match a target force on their right index finger, first by pressing directly on their finger with their other hand, then by controlling the device through an external potentiometer to control the force (indirectly) though a torque motor. In the direct condition, we observed a consistent overestimation of the force reproduced; mean force error 0.50 newtons (standard error = 0.04). In the slider condition we observed a more accurate, yet small, underestimation of reproduced force: −0.30 newtons (standard error = 0.03).

在本文中，我们描述了触觉力匹配设备的设计、开发和功能。该设备通过确定受试者成功衰减传入感觉信号的能力来测量精确的感觉运动感知。感觉衰减提供了一种研究感知的心理物理方面的新方法，并可能有助于制定可能解释适应不良的内感受处理的神经认知模型。文献中报道了几种类似的定制设备；但是，缺乏对制造这种设备所需的机械工程的清晰描述。我们详细介绍了构建这种设备所需的硬件和软件。科目（N = 25) 被要求匹配右手食指上的目标力，首先用另一只手直接按压他们的手指，然后通过外部电位器控制设备以通过扭矩电机（间接）控制力。在直接条件下，我们观察到对复制力的持续高估；平均力误差 0.50 牛顿（标准误差 = 0.04）。在滑块条件下，我们观察到了对再现力的更准确但较小的低估：-0.30 牛顿（标准误差 =  0.03）。