●内置的灵活性:NTS从天开始就尽可能被设计得灵活且适应性强。系统的硬件、信号检测方法和帽子旨在让用户以任何可以想象的配置来布置NTS光源和探测器光纤,从而可以在任何被试上进行几乎任何皮层区域的研究。
功能近红外光谱成像技术(fNIRS)使用光来监测人脑功能。该技术通过将近红外光传输到头皮,然后在几厘米远的地方检测散射回头皮的光,可以测量大脑中氧合和脱氧血红蛋白浓度的变化。由于脑活动和局部血流之间存在密切的联系,血红蛋白浓度的这些变化提供了脑功能的可靠度量。NTS fNIRS系统处于这一技术增长的*,以易于使用和便携的方式安全地研究人脑功能。
相比其他脑功能成像技术,近红外脑功能成像技术具有良好的空间分辨率、较高的采样率、更多的测量指标、良好的舒适性和较低的成本等优点,在认知神经科学和临床研究中有着较为广泛的应用;同时由于其抗运动干扰性强、便携可穿戴等特点,系统在运动科学、脑机接口等领域的价值也逐渐被研究者所认识。具体应用案例包括驾驶员的认知负荷研究、多模态脑机接口研究、操作人的情绪状态研究等。
七、参考文献
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Chalia, Maria, et al. Hemodynamic response to burst-suppressed and discontinuous electroencephalography activity in infants with hypoxic ischemic encephalopathy. Neurophotonics, 3(3) 031408, 2016.
Begus, K., Lloyd-Fox, S., Halliday, D., Papademetriou, M., Darboe, M.K., Prentice, A.M., Moore, S.E. & Elwell, C.E. Using fNIRS to study working memory of infants in rural Africa. Advances in Experimental Medicine and Biology 876, p. 273-279, 2016.
Brigadoi, S., Powell, S., Cooper, R.J., Dempsey, L.A., Arridge, S., Everdell, N., Hebden, J. and Gibson, A.P. Evaluating real-time image reconstruction in diffuse optical tomography using physiologically realistic test data. Biomedical optics express, 6(12), pp.4719-4737, 2015.
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Southgate, V., Begus, K., Lloyd-Fox, S. & Hamilton, A. Goal representation in the infant brain. NeuroImage, 85, 294-301, 2014.
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Lloyd-Fox, S., Richards, J.E., Blasi, A., Murphy, D.G.M., Elwell, C.E. & Johnson, M.H. Co-registering fNIRS with underlying cortical areas in infants. Neurophotonics. 1(2), 025006, 2014.
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二、产品特点
NTS系统的核心优势:灵活的系统配置与高质量的数据。