Intracortical Microstimulation as a Feedback Source for Brain-Computer Interface Users
Intracortical Microstimulation as a Feedback Source for Brain-Computer Interface Users
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DOI：
10.1007/978-3-319-64373-1_5
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发表时间：
2017-01-01
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影响因子：
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通讯作者：
Gaunt, Robert
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文献类型：
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作者：
Flesher, Sharlene;Downey, John;Gaunt, Robert
灵巧的物体操作需要皮肤感觉反馈，如果没有皮肤感觉反馈，即使是简单的抓取任务也会显得笨拙和缓慢。在通过皮质内脑机接口(IBCI)控制的假肢中，恢复这种体感反馈可能是改善功能的重要一步，因为在物体相互作用期间，视觉只能提供贫乏的线索。初级躯体感觉皮层(S1)的皮质内微刺激(ICMS)是一种潜在的恢复这种感觉反馈的方法，特别是对于那些无法从周围神经系统刺激中受益的人。在这里，我们展示了交付给S1的ICMS在个体手指上以分级强度产生体位相关的皮肤知觉的能力。这展示了ICMS向IBCI用户提供皮肤反馈的能力。
Dexterous object manipulation requires cutaneous sensory feedback, and in its absence, even simple grasping tasks appear clumsy and slow. In prosthetic limbs controlled through intracortical brain-computer interfaces (iBCIs), restoring this somatosensory feedback could be an important step to improving function as vision provides only impoverished cues during object interactions. Intracortical microstimulation (ICMS) of primary somatosensory cortex (S1) is a potential method to restore this sensory feedback, particularly in people who cannot benefit from stimulation of the peripheral nervous system. Here, we demonstrate the ability of ICMS delivered to S1 to produce somatotopically relevant, cutaneous percepts on individual fingers with graded intensity. This demonstrates the capabilities of ICMS for providing cutaneous feedback to iBCI users.