期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Highly-compliant,conformal and stretchable microelectrode arrays 被引量:1
1
作者 Zhang Hongzhi Xie Lei +3 位作者 Yu Mei Liu Zhiyuan Li Yuchun Yu Zhe 《Engineering Sciences》 EI 2013年第3期72-75,共4页
Most biological tissues are supple and elastic, while current electronic devices fabricated by semiconductors and metals are usually stiff and brittle. As a result, implanted electronic devices can irritate and damage... Most biological tissues are supple and elastic, while current electronic devices fabricated by semiconductors and metals are usually stiff and brittle. As a result, implanted electronic devices can irritate and damage surrounding tissues, causing immune reaction and scarring. In this work, we develop stretchable microelectrode arrays, with the development of a novel soft lithography technology, which are designed and fabricated with a polymer/stretchable metal/polymer sandwich structure. With the great deformability of stretch, compression, bend and twisting, while preserving electrical property, this technology overcomes the fundamental mismatch of mechanical properties between biological tissues and electronic devices, and provides highly-compliant, confonnal and stretchable bio-electronic interfaces. Here we also describe the following three applications of the stretchable electrode arrays: a. monitoring intracranial electroencephalography (EEG); b. stimulating peripheral nerves to drive muscles; c. monitoring epicardial electrocardiography (ECG). Stretchable microelectrode arrays create a promising field in biomedical applications for its better modulus match with biological tissues and robust mechanical and electrical properties. They allow for construction of electronic integrated circuits spread over on complex and dynamic curved surfaces, providing a much friendlier bio-electronic interface for diagnosis, treatment and in- telligent bio-control. 展开更多
关键词 biological micro-electro-mechanical system (bioMEMS) microelectrode array EEG neural prosthesis ECG
下载PDF
The dorsolateral pre-frontal cortex bi-polar error-related potential in a locked-in patient implanted with a daily use brain–computer interface
2
作者 Zachary Freudenburg Khaterah Kohneshin +6 位作者 Erik Aarnoutse Mariska Vansteensel Mariana Branco Sacha Leinders Max van den Boom Elmar G.M.Pels Nick Ramsey 《Control Theory and Technology》 EI CSCD 2021年第4期444-454,共11页
While brain computer interfaces(BCIs)ofer the potential of allowing those sufering from loss of muscle control to once again fully engage with their environment by bypassing the afected motor system and decoding user ... While brain computer interfaces(BCIs)ofer the potential of allowing those sufering from loss of muscle control to once again fully engage with their environment by bypassing the afected motor system and decoding user intentions directly from brain activity,they are prone to errors.One possible avenue for BCI performance improvement is to detect when the BCI user perceives the BCI to have made an unintended action and thus take corrective actions.Error-related potentials(ErrPs)are neural correlates of error awareness and as such can provide an indication of when a BCI system is not performing according to the user’s intentions.Here,we investigate the brain signals of an implanted BCI user sufering from locked-in syndrome(LIS)due to late-stage ALS that prevents her from being able to speak or move but not from using her BCI at home on a daily basis to communicate,for the presence of error-related signals.We frst establish the presence of an ErrP originating from the dorsolateral pre-frontal cortex(dLPFC)in response to errors made during a discrete feedback task that mimics the click-based spelling software she uses to communicate.Then,we show that this ErrP can also be elicited by cursor movement errors in a continuous BCI cursor control task.This work represents a frst step toward detecting ErrPs during the daily home use of a communications BCI. 展开更多
关键词 Brain computer interface Error-related potentials Motor cortex Dorsolateral pre-frontal conrtex Locked-in syndrome Utrecht neural prosthesis
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部