PDF(Pubmed)
Abstract：
The ionic environment of body fluids influences nervous functions for maintaining homeostasis in organisms and ensures normal perceptual abilities and reflex activities. Neural reflex activities, such as limb movements, are closely associated with potassium ions (K+). In this study, we developed artificial synaptic devices based on ion concentration-adjustable gels for emulating various synaptic plasticities under different K+ concentrations in body fluids. In addition to performing essential synaptic functions, potential applications in information processing and associative learning using short- and long-term plasticity realized using ion concentration-adjustable gels are presented. Artificial synaptic devices can be used for constructing an artificial neural pathway that controls artificial muscle reflex activities and can be used for image pattern recognition. All tests show a strong relationship with ion homeostasis. These devices could be applied to neuromorphic robots and human-machine interfaces.
摘要：
体液的离子环境会影响维持生物体内稳态的神经功能，并确保正常的感知能力和反射活动。神经反射活动,如肢体运动，与钾离子（K+）密切相关。在这项研究中,我们开发了基于离子浓度可调凝胶的人工突触设备，用于模拟体液中不同K浓度下的各种突触可塑性。除了执行基本的突触功能，提出了使用离子浓度可调凝胶实现的短期和长期可塑性在信息处理和联想学习中的潜在应用。人造突触装置可用于构建控制人造肌肉反射活动的人造神经通路，并可用于图像模式识别。所有测试都显示与离子稳态有很强的关系。这些设备可以应用于神经形态机器人和人机界面。
