Liamzin D R, Bondar' I V, Ivanov R S
Ross Fiziol Zh Im I M Sechenova. 2009 Apr;95(4):335-46.
For the study of primary visual cortex functional structure, particularly its inherent orientation columns, the so-called intrinsic optical signal is often used. Intrinsic signal displays changes of the local neuronal metabolism and brain blood flow, induced by functional load. Apart from the advantages of the technique, the mapping of neuronal groups can be impeded by the noise caused by the global components of optical signal corresponding to the ongoing physiological processes in the organism. Because of that the elimination of global effects becomes crucial. The article presents a new method of processing the functional images that enables revealing of global components of the optical signal via approximation, and deleting them from the original images. The results obtained by using the method under discussion are compared to those obtained via the conventional method.
对于初级视觉皮层功能结构的研究，尤其是其固有的方位柱，通常会使用所谓的内在光学信号。内在信号显示了由功能负荷引起的局部神经元代谢和脑血流的变化。除了该技术的优点外，对应于机体正在进行的生理过程的光学信号全局成分所产生的噪声可能会阻碍神经元群体的映射。因此，消除全局效应变得至关重要。本文提出了一种处理功能图像的新方法，该方法能够通过近似揭示光学信号的全局成分，并将其从原始图像中删除。将使用所讨论方法获得的结果与通过传统方法获得的结果进行了比较。
