The development of efficient construction of neuromorphic sensory systems for the next generation of neurorobots and electronic prostheses is highly expected but also challenging. Here, we present a simple two-terminal piezo-resistive threshold switching (PRTS) synaptic device for the emulation of synaptic dynamics that simultaneously exhibits volatile resistive switching (RS) and pressure-tunable synaptic behaviors. The designed synaptic device, which mimics the functions of the human tactile system, simplifies the complex circuit design needed to recognize an external pressure image in the pressure memory network and improves the efficiency and recognition rate of subsequent processing tasks compared with those of traditional pressure sensors. This study opens up the possibility to simplify the neurological circuits of tactile perception systems, with promising applications in electronic skin and prosthetics.

下一代电子机器人和电子假肢的神经形态感觉系统的有效构建的发展是高度期望的，但也具有挑战性。在这里，我们提出了一个简单的用于仿真突触动力学的简单的两端压阻阈值开关（PRTS）突触设备，该设备同时展现了挥发性电阻开关（RS）和压力可调突触行为。设计的突触设备模仿了人类触觉系统的功能，简化了识别压力存储网络中外部压力图像所需的复杂电路设计，与传统压力传感器相比，提高了后续处理任务的效率和识别率。这项研究为简化触觉感知系统的神经系统回路提供了可能性，