...
首页> 外文期刊>Journal of Neuroscience Methods >Non-magnetic equipment for the high-resolution quantification of finger kinematics during functional studies of bimanual coordination.
【24h】

Non-magnetic equipment for the high-resolution quantification of finger kinematics during functional studies of bimanual coordination.

机译:在双向协调功能研究过程中用于手指运动学的高分辨率量化的非磁性设备。

获取原文
获取原文并翻译 | 示例
           

摘要

Simultaneous recording of behavioral and functional data is crucial in capturing the neural mechanisms underpinning human motor actions. We describe a non-magnetic equipment (NME) to record finger kinematics, in particular the absolute amplitude of finger oscillation, during bimanual coordination paradigms performed in functional studies. NME monitors finger movements with optic fiber signals that are post-processed off-line to quantify finger kinematics. A phantom experiment demonstrated no mutual interference between NME and fMRI, hence the usability of NME in environments sensitive to electro-magnetic fields. The spatial and temporal resolutions of NME data (1 mm and 1 ms), its reliability and feasibility when studying human subjects were verified with two comparative experiments performed with NME and a validated infrared camera (IRC) system. Results showed that the restrictions of NME (reduction of degrees of freedom of the coordinated system and potential haptic feedback) do not interfere with the correct reconstruction of finger kinematics. We also demonstrated that the recorded behavioral information can be used to detect neural activity associated with specific features of coordinated behavior. Therefore, we believe that the use of NME for the combined analysis of behavioral and functional data may help assessing an adequate interpretation of the cortical activity associated with specific tasks. This approach might as well help to explore the role of specific brain areas in motor processes, with a potential great impact in the diagnosis and subsequent intervention in brain injured patients, or in children affected by developmental coordination disorders.
机译:行为和功能数据的同时记录对于捕获支撑人类运动行为的神经机制至关重要。我们描述了一种非磁性设备(NME),用于在功能研究中进行的双手协调范例中记录手指运动学,尤其是手指振动的绝对幅度。 NME使用脱机后处理的光纤信号监控手指的运动,以量化手指运动学。幻像实验表明NME和fMRI之间没有相互干扰,因此NME在对电磁场敏感的环境中的可用性。 NME数据的时空分辨率(1 mm和1 ms),其可靠性和可行性在研究人类受试者时已通过使用NME和经过验证的红外摄像机(IRC)系统进行的两个对比实验得到了验证。结果表明,NME的限制(降低协调系统的自由度和潜在的触觉反馈)不会干扰手指运动学的正确重建。我们还证明,所记录的行为信息可用于检测与协调行为的特定特征相关的神经活动。因此,我们认为将NME用于行为和功能数据的组合分析可能有助于评估与特定任务相关的皮层活动的充分解释。这种方法也可能有助于探索特定大脑区域在运动过程中的作用,对脑损伤患者或受发育协调障碍影响的儿童的诊断和后续干预可能产生巨大影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号