Movement-related cortical activation with voluntary pinch task: simultaneous monitoring of near-infrared spectroscopy signals and movement-related cortical potentials.
Movement-related cortical activation with voluntary pinch task: simultaneous monitoring of near-infrared spectroscopy signals and movement-related cortical potentials.
复制标题
自愿捏捏任务的运动相关皮层激活：同时监测近红外光谱信号和运动相关皮层电位。
DOI：
10.1117/1.jbo.17.7.076011
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发表时间：
2012
影响因子：
3.5
通讯作者：
Y. Fujii
中科院分区：
文献类型：
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作者：
Yosuke Sato;M. Fukuda;M. Oishi;Y. Fujii
本研究旨在评估人类自愿捏手指的血流动力学和电生理运动皮层反应，同时记录近红外光谱 (NIRS) 信号和运动相关皮层电位 (MRCP)。六名健康的惯用右手的受试者按照自己的节奏进行了 100 次自愿捏右手拇指食指的试验，每次间隔约 10 秒。在整个会议期间，通过 NIRS 评估双侧运动皮层的 48 个区域，同时监测 MRCP 和肌电图 (EMG)。 MRCP 在 EMG 发作前 1536 ± 58 ms 开始，并在 EMG 发作后 127 ± 24 ms 达到峰值。 NIRS 数据显示双侧前额皮质在 EMG 出现前 0.5 ± 0.1 秒处激活，双侧背侧前运动皮层在 EMG 出现前 0.6 ± 0.1 秒处激活。感觉运动皮层的手部区域主要向左激活，在 EMG 开始后 3.7 ± 0.2 秒处明显达到峰值。 MRCP 和 NIRS 结果之间的比较提出了血管对神经活动的反应在自愿捏捏任务的 4 秒内发生的可能性。这些结果表明我们的技术可以对电机控制进行详细研究。我们的方法对于事件相关的运动控制和神经血管耦合研究来说是一种有前景的策略。
This study was designed to evaluate hemodynamic and electrophysiological motor cortex responses to voluntary finger pinching in humans, with simultaneous recording of near-infrared spectroscopy (NIRS) signals and movement-related cortical potentials (MRCP). Six healthy, right-handed subjects performed 100 trials of voluntary right-thumb index-finger pinching with about a 10-second interval at their own pace. Throughout the session, 48 regions over the bilateral motor cortex were assessed by NIRS, while MRCP and electromyogram (EMG) were simultaneously monitored. MRCP started 1536 ± 58 ms before EMG onset and peaked 127 ± 24 ms after EMG onset. NIRS data showed bilateral prefrontal cortex at 0.5 ± 0.1 s before EMG onset and bilateral dorsal premotor cortex activations at 0.6 ± 0.1 s before EMG onset. The hand area of the sensorimotor cortex was activated left-dominantly, seen obviously peaked at 3.7 ± 0.2 s after EMG onset. The comparison between MRCP and NIRS results raised the possibility that the vascular response to neural activity occurs within 4 s with a voluntary pinch task. These results indicate that our technique allows detailed study of the motor control. Our method is a promising strategy for event-related motor control and neurovascular coupling studies.
Noguchi, Y.、Takeuchi, T.、Sakai, K.L.：“句法处理期间下额叶皮层的横向激活：与事件相关的光学地形研究”Hum.Brain Mapp.. 17. 89-99 (2002)
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Mochizuki, H;Ugawa, Y;Sakai, KL
通讯作者：
Sakai, KL
Ikeda, A.：“从辅助运动区和初级运动区记录的运动相关电位：辅助运动区在随意运动中的作用。”
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