Effects of mental fatigue on 8–13Hz brain activity in people with spinal cord injury
Effects of mental fatigue on 8–13Hz brain activity in people with spinal cord injury
复制标题
精神疲劳对脊髓损伤患者 8-13Hz 大脑活动的影响
DOI：
10.1109/iembs.2008.4650512
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
A. Craig
中科院分区：
文献类型：
--
作者：
N. Wijesuriya;Y. Tran;R. Thuraisingham;H.T. Nguyen;A. Craig
脑机接口(BCI)可以被应用到辅助技术中，为严重残疾的人提供“免提”控制。BCI利用一个人大脑活动的自愿变化作为一种控制机制，来控制这个人周围环境中的设备。脊髓损伤(SCI)中常见的疲劳和电生理学改变等负性生理条件可能会对BCI的表现产生不利影响。这项研究考察了认知需求增加引起的精神疲劳对脊髓损伤患者大脑活动的影响。结果显示，在完成一系列认知任务后，健全对照组的阿尔法(8-13赫兹)活动有增加的趋势。相反，脊髓损伤组由于精神疲劳而表现出阿尔法活动的减少。结果表明，SCI患者的脑活动在其机制上发生了改变，以适应精神疲劳。当在SCI等临床人群中使用BCI时，需要解决这些改变的大脑状况。这一发现对脑-机接口技术的改进具有一定的指导意义
Brain computer interfaces (BCIs) can be implemented into assistive technologies to provide ‘hands-free’ control for the severely disabled. BCIs utilise voluntary changes in one's brain activity as a control mechanism to control devices in the person's immediate environment. Performance of BCIs could be adversely affected by negative physiological conditions such as fatigue and altered electrophysiology commonly seen in spinal cord injury (SCI). This study examined the effects of mental fatigue from an increase in cognitive demand on the brain activity of those with SCI. Results show a trend of increased alpha (8–13Hz) activity in able-bodied controls after completing a set of cognitive tasks. Conversely, the SCI group showed a decrease in alpha activity due to mental fatigue. Results suggest that the brain activity of SCI persons are altered in its mechanism to adjust to mental fatigue. These altered brain conditions need to be addressed when using BCIs in clinical populations such as SCI. The findings have implications for the improvement of BCI technology
DOI：
10.1176/jnp.6.3.237
发表时间：
1994
期刊：
The Journal of neuropsychiatry and clinical neurosciences
影响因子：
--
作者：
Kishi,Y;Robinson,RG;Forrester,AW
通讯作者：
Forrester,AW