Early detection of hand movements from electroencephalograms for stroke therapy applications.
Early detection of hand movements from electroencephalograms for stroke therapy applications.
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DOI：
10.1088/1741-2560/8/4/046003
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发表时间：
2011-08
影响因子：
4
通讯作者：
Taylor DM
中科院分区：
文献类型：
--
作者：
Muralidharan A;Chae J;Taylor DM
运动辅助设备，如神经肌肉刺激系统，可用于产生运动的人与慢性手麻痹，由于中风。如果可以检测到，大脑皮层中的运动规划活动可以在真实的时间内用来触发运动辅助装置，恢复一个人进行许多日常生活活动的能力。此外，将皮质中的运动规划与外围中的辅助运动生成重新耦合可以提供更大的益处-随着时间的推移加强相关的突触连接以促进自然运动恢复。本研究探讨了使用脑电图（EEG）作为一种手段，快速检测的意图，以开放的手在运动规划的个人中度慢性手麻痹后皮层下缺血性中风。平均而言，在运动开始的第一个迹象之前大约100-500 ms，可以从EEG检测到打开手的尝试。这种较早的检测将使设备激活延迟最小化，并且将允许在皮层中运动计划的初始形成与通过运动辅助设备在外围中增强该计划之间的更紧密耦合。这种紧密的时间耦合对于加强突触连接和增强自然运动恢复可能是重要的，甚至是必需的。
Movement-assist devices such as neuromuscular stimulation systems can be used to generate movements in people with chronic hand paralysis due to stroke. If detectable, motor planning activity in the cortex could be used in real time to trigger a movement-assist device and restore a person’s ability to perform many activities of daily living. Additionally, re-coupling motor planning in the cortex with assisted movement generation in the periphery may provide an even greater benefit—strengthening relevant synaptic connections over time to promote natural motor recovery. This study examined the potential for using electroencephalograms (EEGs) as a means of rapidly detecting the intent to open the hand during movement planning in individuals with moderate chronic hand paralysis following a subcortical ischemic stroke. Attempts to open the hand on average could be detected from EEGs approximately 100–500 ms prior to the first signs of movement onset. This earlier detection would minimize device activation delays and would allow for tighter coupling between initial formation of the motor plan in the cortex and augmentation of that plan in the periphery by a movement-assist device. This tight temporal coupling may be important or even essential for strengthening synaptic connections and enhancing natural motor recovery.
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影响因子：
7.8
作者：
Kwok, T;Smith, KA
通讯作者：
Smith, KA
影响因子：
9.9
作者：
Volpe, BT;Krebs, HI;Aisen, ML
通讯作者：
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DOI：
10.1155/asp.2005.3103
发表时间：
2005-01-01
期刊：
EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING
影响因子：
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作者：
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通讯作者：
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作者：
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通讯作者：
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影响因子：
4.7
作者：
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通讯作者：
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