Merged Haptic Sensation in the Hand during Concurrent Non-Invasive Proximal Nerve Stimulation
Merged Haptic Sensation in the Hand during Concurrent Non-Invasive Proximal Nerve Stimulation
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DOI：
10.1109/embc.2018.8512707
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发表时间：
2018-07
期刊：
影响因子：
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通讯作者：
Luis Vargas;H. Huang;Yong Zhu;Xiaogang Hu
中科院分区：
文献类型：
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作者：
Luis Vargas;H. Huang;Yong Zhu;Xiaogang Hu
当个体与环境互动时，感官反馈是体验的一个关键方面。使用假肢的人通常难以控制他们的设备，部分原因是缺乏感官信息。当控制的电流被传送到靠近神经的一对电极上时，经皮神经刺激有可能引起局灶性触觉。本初步研究的目的是评估当多个并发电刺激传递到正中神经束和尺神经束的不同部分时，不同的诱发局灶触觉是如何改变的。个体刺激与并发刺激之间的延迟也会发生变化，以确定该参数是否会改变产生的感觉区域。最后，确定在并发刺激下感知感觉的稳定性/可重复性。我们的初步结果表明，当将单个神经刺激的感觉区域与同时的双重刺激的感觉区域进行比较时，触觉的空间分布在很大程度上是单个神经刺激的感觉区域的直接总和/合并。合并感觉区对两种并发刺激的时间延迟不敏感。最后，感觉区域保持稳定，即使在20-60分钟的重复刺激之间，手部也表现出可重复的感觉。
When individuals interact with the environment, sensory feedback is a critical aspect of the experience. Individuals using prosthesis often have difficulty controlling their device, partly due to a lack of sensory information. Transcutaneous nerve stimulation has the potential to elicit focal haptic sensation when controlled electrical current was delivered to a pair of electrodes in proximity to the nerve. The objective of this preliminary study was to evaluate how different elicited focal haptic sensation were altered, when multiple concurrent electrical stimuli were delivered to different portions of the median and ulnar nerve bundles. The delay between the individual stimulation during concurrent stimuli was also varied to identify if this parameter could alter the resulting sensation region. Lastly, the stability/repeatability of the perceived sensation during concurrent stimuli was determined. Our preliminary results showed that the spatial distribution of the haptic sensation was largely a direct summation/merge of the sensation regions from the individual nerve stimulation when comparing the regions to that of the concurrent double stimulation. Our results also showed that merged sensation region was not sensitive to different time delays the two concurrent stimuli. Lastly, the sensation regions remained stable and showed repeatable sensation in the hand even with 20–60 minutes between repeated stimulations.